Remove def of h2views bean

It's now done in the transmart-core-db-test's doWithSpring closure.
travis: add cache, hopefully fix build

Added a grails upgrade call to force WEB-INF being created.
Function tests plugin breaks grails upgrade

Don't use it then. Instead, make sure web-app exists and is populated.
Merge branch 'master' into features/CHERKASY-implement-api-calls
Merge branch 'features/CHERKASY-implement-api-calls' into features/CHERKASY-51-convert-rest-api-to-plugin

Conflicts:
	grails-app/conf/spring/resources.groovy
[CHERKASY-51] Remove redundant declaration