avoid long lines

It is a coding style violation.
add catalan & spanish no javascript warning message translation
Merge pull request #2418 from davidromani/master

add catalan & spanish no javascript warning message translation
add catalan & spanish no fields available message translation
Merge pull request #2420 from davidromani/master

add catalan & spanish no fields available message translation
log exceptions

Don't just throw away the useful error messages!
add if_true/if_false method in FormMapper
add tree layout elements
move branch alias to 2.4
Merge branch '2.3'

Conflicts:
	Mapper/BaseGroupedMapper.php
Merge pull request #2408 from greg0ire/log_exceptions

[DX]Log exceptions
updated ignore files added idea files to ignore list
Merge branch 'sonata-master'