Completed core package migration to Grails 2.3.4;
Migrate security core plugin to 2.0RC2
Update BuildConfig.groovy for MySQL dependency;
Update DataSource.groovy to use UTF-8 in MySQL;
Change output log file name in Config.groovy.
Fix migrant update latest location in enrollment process.
Fix migrant update latest location in enrollment process;
Add custom exception for enrollment process.
Fix photograph detection on enrollment.