Merge branch 'release/0.3' into develop
Supports QR Code link.
Removed unnecessary comments.
Fixed a base template bug...
Added some background patterns for color-schemes.
Demonstrate using iterators.
Demonstrate metadata structure.
Merge branch 'feature/using_iterator' into develop
Added template source code tabs.
Some template improvements.
Merge branch 'feature/template_viewer' into develop
Ready for version 0.4.
Merge branch 'release/0.4'