default runtime.environment to development
Disable caching for any page (prevent staleness on back button)
add product option support for text entering.
add product option regex validation
show product options in cart
remove unnecessary demo dependencies
Merge remote-tracking branch 'upstream-DemoSite/admin3' into develop

Conflicts:
	admin/build.xml
	admin/pom.xml
	combined/build.xml
	combined/pom.xml
	site/build.xml