feat(yamllint): include for this repo and apply rules throughout

* Semi-automated using `ssf-formula` (v0.5.0)
* Fix errors shown below:

```bash
php-formula$ $(grep "\- yamllint" .travis.yml | sed -e "s:^\s\+-\s\(.*\):\1:")
./test/integration/default/inspec.yml
  1:1       warning  missing document start "---"  (document-start)

pillar.example
  3:1       warning  missing document start "---"  (document-start)
  7:22      warning  truthy value should be one of [false, true]  (truthy)
  8:22      warning  truthy value should be one of [false, true]  (truthy)
  10:22     warning  truthy value should be one of [false, true]  (truthy)
  16:17     warning  truthy value should be one of [false, true]  (truthy)
  41:12     error    wrong indentation: expected 10 but found 11  (indentation)
  46:27     warning  truthy value should be one of [false, true]  (truthy)
  70:18     warning  truthy value should be one of [false, true]  (truthy)
  74:19     warning  truthy value should be one of [false, true]  (truthy)
  83:22     warning  truthy value should be one of [false, true]  (truthy)
  97:22     warning  truthy value should be one of [false, true]  (truthy)
  107:89    error    line too long (93 > 88 characters)  (line-length)
  118:20    warning  truthy value should be one of [false, true]  (truthy)
  126:14    error    wrong indentation: expected 12 but found 13  (indentation)
  126:23    warning  truthy value should be one of [false, true]  (truthy)
  151:20    warning  truthy value should be one of [false, true]  (truthy)
  177:19    warning  truthy value should be one of [false, true]  (truthy)
  197:25    warning  truthy value should be one of [false, true]  (truthy)
```

## [0.39.2](https://github.com/saltstack-formulas/php-formula/compare/v0.39.1...v0.39.2) (2019-08-13)

### Bug Fixes

* **tests:** fix package name for debian ([4f75eac](https://github.com/saltstack-formulas/php-formula/commit/4f75eac))

fix(tests): fix package name for debian

## [0.39.1](https://github.com/saltstack-formulas/php-formula/compare/v0.39.0...v0.39.1) (2019-08-12)

### Bug Fixes

* **installed.jinja:** remove `include` to prevent conflicting IDs ([cb11784](https://github.com/saltstack-formulas/php-formula/commit/cb11784)), closes [#188](https://github.com/saltstack-formulas/php-formula/issues/188)

fix(installed.jinja): remove `include` to prevent conflicting IDs

* Ends up with two `include:` lists when rendered
* Close #188

# [0.39.0](https://github.com/saltstack-formulas/php-formula/compare/v0.38.1...v0.39.0) (2019-08-07)

### Bug Fixes

* **php/ng:** don't iterate on string, make sure list is not string ([dbb542c](https://github.com/saltstack-formulas/php-formula/commit/dbb542c))

### Documentation

* **pillar.example:** add example for alternatives with multiversion ([23a6ec1](https://github.com/saltstack-formulas/php-formula/commit/23a6ec1))
* **pillar.example:** example of versions ([a98aa7e](https://github.com/saltstack-formulas/php-formula/commit/a98aa7e))

### Features

* **php/ng:** support for php cli multiversion ([bb4a077](https://github.com/saltstack-formulas/php-formula/commit/bb4a077))
* **php/ng:** support the use of a list of php versions ([b303239](https://github.com/saltstack-formulas/php-formula/commit/b303239)), closes [#138](https://github.com/saltstack-formulas/php-formula/issues/138)

### Styles

* **pillar.example:** add line break ([38fe58f](https://github.com/saltstack-formulas/php-formula/commit/38fe58f))

[php/ng] support the use of a list of php versions

## [0.38.1](https://github.com/saltstack-formulas/php-formula/compare/v0.38.0...v0.38.1) (2019-08-03)

### Bug Fixes

* update deprecation version number in `semantic-release` run ([a87fb91](https://github.com/saltstack-formulas/php-formula/commit/a87fb91)), closes [/github.com/saltstack-formulas/php-formula/pull/175#issuecomment-517492613](https://github.com//github.com/saltstack-formulas/php-formula/pull/175/issues/issuecomment-517492613) [/github.com/saltstack-formulas/php-formula/pull/185#issuecomment-517603898](https://github.com//github.com/saltstack-formulas/php-formula/pull/185/issues/issuecomment-517603898)

fix: update deprecation version number in `semantic-release` run

* Semi-automated using `ssf-formula` (v0.2.0)
* References:
  - https://github.com/saltstack-formulas/php-formula/pull/175#issuecomment-517492613
  - https://github.com/saltstack-formulas/php-formula/pull/185#issuecomment-517603898
* Ensure this only runs until `v1.0.0` (done in the script)

chore: use `semantic-release` cross-formula standard structure

* Automated using `ssf-formula` (v0.1.0-rc.5)

# [0.38.0](https://github.com/saltstack-formulas/php-formula/compare/v0.37.1...v0.38.0) (2019-08-01)

### Features

* **map:** add xmlrpc package for xml module, as it was done for SUSE ([a09ef92](https://github.com/saltstack-formulas/php-formula/commit/a09ef92))

## [0.37.1](https://github.com/saltstack-formulas/php-formula/compare/v0.37.0...v0.37.1) (2019-08-01)

### Bug Fixes

* add warning message for ng states ([d45bae8](https://github.com/saltstack-formulas/php-formula/commit/d45bae8))
* allow muting deprecation warning via. pillar/config entry ([8e7471e](https://github.com/saltstack-formulas/php-formula/commit/8e7471e))
* change message to warn about upcoming deprecation ([e97eeae](https://github.com/saltstack-formulas/php-formula/commit/e97eeae))
* warn formula users ng states will be promoted in `v1.0.0` ([d033381](https://github.com/saltstack-formulas/php-formula/commit/d033381))
* **pillar_from_files:** use `{}` pillar files to ensure tests pass ([1a5d734](https://github.com/saltstack-formulas/php-formula/commit/1a5d734))
* **readme:** add warning in  docs/README.rst ([3ac59e4](https://github.com/saltstack-formulas/php-formula/commit/3ac59e4))

fix: warn formula users ng states will be promoted in `v1.0.0`

chore: use `semantic-release` cross-formula standard structure

* Automated using `ssf-formula` (v0.1.0-rc.1)

Related to #138

# [0.37.0](https://github.com/saltstack-formulas/php-formula/compare/v0.36.0...v0.37.0) (2019-07-09)

### Bug Fixes

* **mods:** fixup for [#181](https://github.com/saltstack-formulas/php-formula/issues/181) ([e2d7b4b](https://github.com/saltstack-formulas/php-formula/commit/e2d7b4b))

### Features

* **mods:** added some mods support for FreeBSD ([3f6c0bc](https://github.com/saltstack-formulas/php-formula/commit/3f6c0bc))

fix(mods): fixup for #181

feat(mods): added some mods support for FreeBSD

# [0.36.0](https://github.com/saltstack-formulas/php-formula/compare/v0.35.1...v0.36.0) (2019-06-29)

### Documentation

* **readme:** update with modules, bz2 & dba ([5e04187](https://github.com/saltstack-formulas/php-formula/commit/5e04187))

### Features

* add 'bz2' and 'dba' module support ([758ae88](https://github.com/saltstack-formulas/php-formula/commit/758ae88))

add 'bz2' and 'dba' module support

## [0.35.1](https://github.com/saltstack-formulas/php-formula/compare/v0.35.0...v0.35.1) (2019-06-28)

### Documentation

* merge latest changes from `template-formula` ([4af569a](https://github.com/saltstack-formulas/php-formula/commit/4af569a)), closes [#179](https://github.com/saltstack-formulas/php-formula/issues/179)

docs: merge latest changes from `template-formula`

* Completes #179
* Fix testing on `develop` images and enable in the matrix

# [0.35.0](https://github.com/saltstack-formulas/php-formula/compare/v0.34.0...v0.35.0) (2019-06-27)

### Features

* **semantic-release:** add support of semantic-release ([cdd206a](https://github.com/saltstack-formulas/php-formula/commit/cdd206a))

feat(semantic-release): add support of semantic-release

php.ng.modules

Convert module to string before appending it to the base path to search for
existing modules...