Merge pull request #71 from interstroom/master

Add Symfony v2.5 to travis
Do not display format choice when only 1 option
Hide help text from template when only 1 format
Merge pull request #72 from Bladrak/format_field_one_option

Do not display format choice when only 1 option
Fixed missing format_field_options in view vars
Merge pull request #73 from Bladrak/fix_format_field_options

Fixed missing format_field_options in view vars
Deprecated SonataMarkItUpBundle
Merge pull request #74 from Bladrak/deprecate_markitup

Deprecated SonataMarkItUpBundle
fix documenation syntax error, update travis configuration