Merge pull request #28 from Gemorroj/master

[MERGE] minor updates for psr-2
[UPDATE] PSR-2 standards compliance

Use 4 spaces instead of tab

Use LF instead of CRLF
[UPDATE] PSR-2 standards for generated files

Tabs are now replced by 4 spaces.

CRLF are replaced by LF.

One empty line and only one must be present at the end of each file