Solved some errors regarding validation
Merge branch 'develop' of https://github.com/lundmikkel/SMDP-2014 into develop

Conflicts:
	dk.itu.smdp.survey.dsl.ui/src-gen/dk/itu/smdp/survey/ui/contentassist/antlr/internal/InternalDslLexer.java
	dk.itu.smdp.survey.dsl.ui/src-gen/dk/itu/smdp/survey/ui/contentassist/antlr/internal/InternalDslParser.java
	dk.itu.smdp.survey.dsl/bin/dk/itu/smdp/survey/Dsl.xtext
	dk.itu.smdp.survey.dsl/src-gen/dk/itu/smdp/survey/Dsl.xtextbin
	dk.itu.smdp.survey.dsl/src-gen/dk/itu/smdp/survey/parser/antlr/internal/InternalDslLexer.java
	dk.itu.smdp.survey.dsl/src-gen/dk/itu/smdp/survey/parser/antlr/internal/InternalDslParser.java
	dk.itu.smdp.survey.dsl/src-gen/dk/itu/smdp/survey/services/DslGrammarAccess.java
	dk.itu.smdp.survey.dsl/src/dk/itu/smdp/survey/Dsl.xtext
	dk.itu.smdp.survey.dsl/src/dk/itu/smdp/survey/validation/DslValidator.xtend
	dk.itu.smdp.survey.dsl/xtend-gen/dk/itu/smdp/survey/validation/DslValidator.java
new generated files..