Merge pull request #79 from SCIF/master

Fixed bug which declined to add custom NSed fields to DataForm
fix issue #82  updating after error-reload
Merge branch 'master' of github.com:zofe/rapyd-laravel
fix issue #85  add-button sample
close #85  add-button sample
romanian translation
Merge pull request #86 from webfuture/master

romanian translation,  thanks @edysoft.
Added method setNullValue() to enable setting null values to model