If user is not Admin, validation rule with AdminExcluded fail no message shown.
Add logging feature
Fix version number
Fix reservation date and time display.
Fix quota unit and duration error so quota will not work.
Merge branch 'master' into quota-rule

Conflicts:
	source/pkg_jongman/components/com_jongman/admin/config.xml
	source/pkg_jongman/components/com_jongman/site/jongman.php
	source/pkg_jongman/components/com_jongman/site/models/instance.php