fix to enable import of answers from a different installation/version of LS
Fixed issue #06918: Make Group Members user list work in same way as
Survey Permissions
Fixed issue #7976: Date question: keyboard entries not validated

Dev: when using the keyboard on the datepicker,
Dev: in the date/time question, invalid dates could be entered
Dev: and submitted. Added validation for dates.
Fixed issue: #08206: Add answers to the set of labels is not possible in language code for "-" eg: pt-BR.
Dev: move control to rules
Dev: Add isLanguage and isLanguageMulti in LSYii_Validators : maybe best is to Add an LSlang_Validators ?
Dev: TODO : use new rules if possible
Fixed issue #8118: Participant can upload file without size limit with question type fileupload.
Dev: quick fix
Dev: max file is done by EM in survey page
Dev: Add preview in take from PHP
Dev: implement timepicker add-on for datepicker

Dev: just preparatory steps, for now functionality
Dev: should mimick the normal datepicker
Dev: better fix for #8141: Unable to set publicurl
Dev: don't control publicurl if is set: let admin make good decision
Dev: don't update getComponent('urlManager')
Dev: hope final fix for #8141: Unable to set publicurl
Dev: final only for createAbsoluteUrl :)
Fixed issue #8238: Image url in email editor don't take publicurl configuration
Dev: fix $_SESSION['KCFINDER']['uploadURL'] for emailsettings
Dev: need a function or reviewing configuration system ?
Fixed issue #8242: Wrong two digit year recorded

Dev: Datepicker uses yy for four digit year, y for two digits.
Dev: wrong jsdate lead to truncation of year ("2013"->"20")
Dev: date/time conversion fails with leading spaces
Corrected a typo on variable name (table_start_index).
Made fallback import optionnal and disabled by default.
Added code to check if at least one answer field could be imported
before committing import.
Merge pull request #139 from cuali/issue06918

Fixed #06918: Make Group Members user list work in same way as Survey Permissions
Dev Added removeResponse function for removing a response from a plugin.
Merge branch '2.05' of github.com:LimeSurvey/LimeSurvey into 2.05
In invite admin, hide buttons the user isn't allow to use.
Merge pull request #143 from Grapsus/fix_invite_controls_205

In invite admin, hide buttons the user isn't allow to use.
Make sure the number of columns is sufficient in force import.
A few styling changes.
Merge pull request #138 from Grapsus/fix_import

enable LS to import answers (.vv) between different installations/versions