Created Zend Framework 2 gitignore file
Included missing new line
Composer.lock and READMEs are no longer ignored
Removed old ZendFramework.gitignore

Documentation rules have been removed and the rest of the rules are going to be included in the ZendFramework2.gitignore.
Included Zend Framework 1 rules
ZendFramework2.gitignore renamed to ZendFramework.gitignore
Merge pull request #886 from acelaya/zf2

Zend Framework 2 gitignore file