added missing use
up changelog
redone error json functions to avoid some confussion with how errors are get
fixed wrong exception variables with shift
Merge pull request #774 from Zentyal/jag/cgi-base-missing-use

Added missing use to EBox::CGI::Base
Merge branch 'master' into modelviewcontroller-json

Conflicts:
	main/core/ChangeLog
	main/core/src/EBox/CGI/ClientRawBase.pm
fixed conflcit error
code typo fix
code typo fix
move div error inside table div
adapted from to chanfges in error and msg div