multi software product line plugin created
popup menu for mspl project added
MSPL: fixing popup menu, adding nature with context menu, fixing java version
license comments added
MSPL: first implementation of the New Interface Wizard
Added "interfaceg" keyword to velvet working the same way as concept
does.

This should be renamed, but can't be named "interface" because generated
method names would interfere with java keywords.
Added concept parameters to velvet grammar.
Not implemented in VelvetFeatureModelReader yet
MSPL: Wizard now creates the interface
+ modified VelvetFeatureModelReader to parse Parameters correctly and
  add them to the Extended Feature Model.
+ modified Extended Feature Model to save parameters
MSPL: interface file management implemented (not ready), refactoring etc
Merge branch 'master' of github.com:tthuem/FeatureIDE
Merge branch 'master' of github.com:tthuem/FeatureIDE
Revert "Merge branch 'master' of github.com:tthuem/FeatureIDE"

This reverts commit e95f6df9d567526708a78528d640527b81064b68, reversing
changes made to 6bf3607aac10cfac4d8270ecb7fb3e1b0f9c2ca4.
Added basic inheritance to velvet parsing.
fix for matthias commit (missing FileLoader), rewrite of mspl stuff
Added several information methods on extendet feature model
Merge remote-tracking branch 'origin/master'

Conflicts:
	plugins/de.ovgu.featureide.fm.core/src/de/ovgu/featureide/fm/core/io/velvet/VelvetFeatureModelReader.java
add parents to extended feature model when parsed
draw line with dashes if feature is imported
Rename INTERFACEG in velvet

* renamed INTERFACEG in velvet grammar to CINTERFACE (meaning concept
  interface)