Minor fixes in order to close the connections opened during the import
process.
Improved the custom qmake variables BINDIR, LIBDIR, RESDIR and DOCDIR
based upon the pull request #416
Merge branch 'qmake-custom-vars' into develop
Fixed duplicated semicolon at end of permissions defintion (issue #418)
Fixed "ALTER .. SET OWNER" DDL for materialized views (issue #419)

Minor fix on view editing form.
Applying fix #424 on 'develop' branch
Fixed schema object code generation. (issue #426)
Merge branch 'fix426-missing-schemas' into develop
Fixed connection config. Empty passwords are now accepted. (issue #428)
Minor updates on CHANGELOG.md and README.md for first 0.7.1-alpha
release.
Minor change on unsuported pgsql version error message.
Fixed the compilation process for MacOSX.
Major model validation improvement. Now special objects are correctly
validated. (issue #432)

Fix crash when closing a model that contains a view that references
columns added by relationships (issue #434)
Merge branch 'fix432-specialobj-broken-ref' into develop
Fixed wrong working directory handling on CLI (issue #433)
Minor change on deploy scripts
Minor fix on linuxdeploy.sh
Fixed undesired behavior when moving a table to another schema (issue
Updates on README.md and CHANGELOG.md for 0.7.1-alpha1
Minor fix on the plugins compilation process.