Create a working PEAR package

The PEAR package was broken and contains only the package.xml file but no further files like the ruleset.xml.

This revision contains a new working package and it reflects the naming change of the standard as well.

This means that the user have to uninstall the old package by
$ sudo pear uninstall typo3/PHPCS_FLOW3_Standard
and install the new one:
$ sudo pear install typo3/TYPO3Flow

PEAR will automatically install the required typo3/TYPO3SniffPool package.
Merge branch 'refs/heads/0.0.2'

I changed the tag 0.0.2 to another commit. It reflects now the new naming scheme we use.

This step was necessary to create a new working PEAR package for this version since the old package was broken.

Conflicts:
	package.xml
Update composer.json

* Change the vendor name
* Add keywords
* Remove the version because it will add by packagist.org
* Remove the dependency to the custom installer because this dependency is already set in typo3-ci/typo3sniffpool which this package depends on
* Remove dependency to codesniffer
* Add suggestion to typo3-ci/typo3cms
* Correct the path to github repository