remove unused code from GrailsViewResolver
Refactor GrailsViewResolver and GroovyPageView to support standalone GSP
resolve beans lazily in DefaultGrailsApplicationAttributes
GSP standalone support: register Grails specific ServletContext attribute in GroovyPagesTemplateEngine initialization
reset flatConfig after doWithConfig call
Fix NPE in some tests
fix for previous commit 8012e769 (TagLibraryResolver was renamed to TagLibraryResolverImpl)
clear applicationSingleton when Holders.clear() is called
update Holders.config when application config changes
set Holders.setGrailsApplication in tests
call Holders.clear() in GrailsApplicationTestPlugin to ensure clean state
remove duplicate line
isolate some tests in grails-test-suite-web that modify metaclasses
Add -Ddebug.tests=1 system property for starting tests with debugger