Fixing composer with php7.

Fixing php7 pgsql package definition.
Adding mbstring and sqlite package definitions for php7.

php/map.jinja

         'memcache_pkg': 'php7.0-memcached',
         'memcached_pkg': 'php7.0-memcached',
         'mysql_pkg': 'php7.0-mysql',
+        'mbstring_pkg': 'php7.0-mbstring',
         'readline_pkg': ' php7.0-readline',
         'redis_pkg': 'php7.0-redis',
         'xml_pkg': 'php7.0-xml',
         'imagick_pkg': 'php7.0-imagick',
         'suhosin_pkg': 'php7.0-suhosin',
-        'pgsql_pkg': 'php5-pgsql',
+        'pgsql_pkg': 'php7.0-pgsql',
         'dev_pkg': 'php7.0-dev',
         'zip_pkg': 'php7.0-zip',
         'php_ini': '/etc/php7.0/apache2/php.ini',
+        'sqlite_pkg': 'php7.0-sqlite3',
+        'local_bin': '/usr/local/bin',
+        'temp_dir': '/tmp',
+        'composer_bin': 'composer',
     },
 }, merge=salt['pillar.get']('php:lookup')) %}