ModelObjectsWidget class refactoring checkpoint. Pending comment
translation.
Merge pull request #133 from Bumanji/code-refactoring

Update chinese language files.
Fixed some malformed utf8 tooltips.
ModelObjectsWidget class refactoring done.
Class ModeloWidget renamed to ModelWidget.

Table-View relationships are now grouped together with Table-Table
relationships.
ModelWidget class refactoring checkpoint.
ModelWidget class refactoring checkpoint. Pending .cpp comment
translation.
Fixed empty DEFAULT clause for columns,types,domain. (issue #134)
Updated translation fr_FR
Fixed weird chars un source and updated fr_FR trans. accordingly
Merge pull request #136 from babs/code-refactoring-trans-fr

Code refactoring French translation.
Fixed "invalid constraint name" error on domain editing form. (issue
ModelWidget class refactoring done.
Class FormPrincipal renamed to MainWindow.
MainWindow class refactoring checkpoint. Pending comment translation.
pt_BR comment removed from config files.
Update chinese language files and fix a bug about change owner message.