fixed typo in java8 patch item and added wtp patch for java8
updated greclipse m2e connector installation unit identifier to be exact
added greclipse jdt patch to m2e connector item to allow installation without greclipse feature at the same time
updated greclipse m2e connector repo to point to the e4.3-j8 version
disable the greclipse jdt feature patch for the m2e connector item for testing purposes
Revert "disable the greclipse jdt feature patch for the m2e connector item for testing purposes"

This reverts commit 775191cb01769298d5a6d02278d57c44cb1818bf.
updated p2 repository URL for greclipse m2e connector to use the product distribution repo
added Groovy 2.3 feature to dashboard
fixed feature ID of greclipse m2e connector item
fixed an issue with installing grails component only without groovy-eclipse involved