Update codesniffer to remove travis errors.
 Fix: [ bug #1752 ] Date filter of margins module, filters since 12H instead of 00H
Fix: [ bug #1769 ] Error when installing to a PostgreSQL DB that contains numbers
Fix: [ bug #1768 ] PHP Warning when error connecting to a PostgreSQL server in install script
Fix: [ bug #1757 ] Sorting breaks product/service statistics
Merge pull request #2175 from marcosgdf/bug-1752

 Fix: [ bug #1752 ] Date filter of margins module, filters since 12H instead of 00H
Merge branch 'marcosgdf-bug-1769' into 3.5
Merge branch '3.5' of git@github.com:Dolibarr/dolibarr.git into 3.5

Conflicts:
	ChangeLog
Merge branch 'bug-1757' of https://github.com/marcosgdf/dolibarr into
marcosgdf-bug-1757

Conflicts:
	ChangeLog
Merge branch 'marcosgdf-bug-1757' into 3.5
Merge branch 'bug-1768' of https://github.com/marcosgdf/dolibarr into marcosgdf-bug-1768
Merge branch 'marcosgdf-bug-1768' into 3.5
Merge remote-tracking branch 'origin/3.5' into 3.6