Class TipoWidget refactored to TypeWidget.

Fixed a bug related to parser xml reading DTD file which path has blank
spaces.

Fixed a bug related to editing tables with OID attribute. (issue #127)

Fixed a bug related to table code generation where the TABLESPACE
keyword was in the wrong place. (issue #126)
Class VisaoWidget refactored to ViewWidget.
Merge pull request #129 from babs/code-refactoring-trans-fr

Updated fr_FR and fixed start-pgmodeler.sh arg transfer
Fix some Windows system dependant code.
Translated menu to chinese.
Fix "with OID" attribute not initialized as true by default. (issue
Merge pull request #132 from Bumanji/code-refactoring

Translated menu to chinese.
Update chinese language files.
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