Addons
Fix pathers
Merge with develop
Fix addon path
Remove browser-mobile target
Add force option to addon updates
Merge branch 'develop' into manifest-addons

Conflicts:
	lib/timestep
Merge branch 'develop' into manifest-addons
Merged develop
updated submodule refs: timestep, menus
Allow multiple tab panes for examples
Fixed select delegate
Merge pull request #90 from gameclosure/feature-example-pages

Allow multiple tab panes for examples
Fix checkout line
Shooter submodule to particle image fix
priv addons use develop branch
Merge pull request #91 from gameclosure/fix-addon-branches

priv addons use develop branch
updated submodule refs: timestep, menus
updated gcapi submodule ref
updated timestep submodule ref