Update src/Gaufrette/Adapter/Ftp.php

Skip dot-lines in listDirectory
Update README.markdown
Update src/Gaufrette/Adapter/Ftp.php

Code Style corrections
Update src/Gaufrette/Adapter/Ftp.php

changed another space
Update README.markdown
Update src/Gaufrette/Adapter/Ftp.php

Use string comparison instead of strpos
Merge branch 'master' of https://github.com/afitzke/Gaufrette into skip-dots-in-ftp-adapters
Add phpspec for ftp adapter skip dots issue
Merge pull request #112 from l3l0/skip-dots-in-ftp-adapters

Skip dots in Ftp-Adapter
fix Adapter\Cache::needsReload when source changed
Fix cache specification.