git ignores idea module files
remove static state for Tool.instance
remove unused stuff from Context
remove unused stuff from Context - 2
remove unused method from Definition
remove unused stuff from Context - 3
remove unused stuff from Context - 4
remove unused state in JavaClassesFactory
update readme with environment variables
fixed BuiltinMap.Builder#build
Merge pull request #1086 from andreistefanescu/master

git ignores idea module files
Merge pull request #1096 from dwightguth/readme

update readme with environment variables
put CollectBracketsVisitor back (see #1095)
replaced assertions with K exceptions
hack to handle bugs in AddInjections
fixed a long-lasting bug of Equality#isFalse
Merge pull request #1101 from andreistefanescu/master

hack to handle bugs in AddInjections
Separating the new parser code for programs from SDF and returning the grammar object in order to avoid having a static state.
Merge pull request #1097 from yilongli/fixing-issue-1088

replaced some assertions with K exceptions
Merge pull request #1084 from osa1/context

Context refactoring -- prelude