Added support for columns to reference "table types"
Merge branch 'table-type' into develop
Fixed the import of fk constraints from PostgreSQL 9.3. (issue #339)

Fixed the creation of fk relationships when the involved tables has too
long names. pgModeler no more complains about "already existent object".
Merge branch 'bug339' into develop
Object names are trimmed on editing forms to avoid unnecessary error
triggering. (issue #337)

Minor improvement on crash handler form.
Minor fix when showing self fk relationships.
Minor fix on pgmodeler-cli: working directory is now set correctly.
Minor fix when retrieving advanced (generated) objects from
relationships.
Added an option to drop database before a export process.
Minor change on SQL validation message.
Fixed a bug that was not properly removing table objects when the user
was canceling the table's editing.

Minor improvement on operation list
Disabling SQL code now disables the code of all referrer and child
objects (experimental!) (issue #342)
Merge branch 'disable-sql-feat342' into develop
Updates for release 0.6.2-beta.
Merge branch 'release-0.6.2-beta' into develop
Fix crash when adding foreign keys to a new table. (issue #344)
Minor updates on CHANGELOG.md and README.md
Minor fix on object table. Command buttons are correctly enabled when
user select items using keyboard.
Fixed the incorrect creation of foreign keys on many-to-many
relationships (issue #348)

Fixed the conversion of self many-to-many relationships.
Merge branch 'fix-bug-348' into develop