Improved registration process.
Moved meta add-on from KOGATA to IGATA.
Introduced meta description switch.
Merge branch 'feature/meta_improvement' into develop
Removed ThemeData module.
Introduced Less async switch.
Improved config variable expansion logic.
Optimized class loading.
Merge branch 'feature/tuning' into develop
Ready for version 0.5.1.
Merge branch 'release/0.5.1' into develop