dsl statement for searching steppables in subtrees
ExistsExpression for debugger DSL
Started refactoring debugger implementation for loops and StatementList
Merge branch 'master' of github.com:mbeddr/mbeddr.core

Conflicts:
	code/languages/com.mbeddr.core/languages/com.mbeddr.core.util/languageModels/behavior.mps
refactored debugging of If- and ForStatement
refactored debugging implementation of SwitchCase
fixed fq path in gitignore
started refactoring stepping for core's debugger implementation
Merge branch 'master' of github.com:mbeddr/mbeddr.core

Conflicts:
	code/languages/com.mbeddr.core/languages/com.mbeddr.core.expressions/languageModels/behavior.mps
	code/languages/com.mbeddr.core/languages/com.mbeddr.core.modules/languageModels/behavior.mps
	code/languages/com.mbeddr.core/languages/com.mbeddr.core.statements/languageModels/behavior.mps
	code/languages/com.mbeddr.core/languages/com.mbeddr.core.udt/languageModels/behavior.mps
	code/languages/com.mbeddr.core/languages/com.mbeddr.core.unittest/languageModels/behavior.mps
	code/languages/com.mbeddr.core/languages/com.mbeddr.core.util/languageModels/behavior.mps
Merge branch 'master' of github.com:mbeddr/mbeddr.core

Conflicts:
	code/languages/com.mbeddr.core/languages/com.mbeddr.core.expressions/languageModels/behavior.mps
	code/languages/com.mbeddr.core/languages/com.mbeddr.core.modules/languageModels/behavior.mps
	code/languages/com.mbeddr.core/languages/com.mbeddr.core.statements/languageModels/behavior.mps
	code/languages/com.mbeddr.core/languages/com.mbeddr.core.unittest/languageModels/behavior.mps
	code/languages/com.mbeddr.core/languages/com.mbeddr.core.util/languageModels/behavior.mps
fixed core's stepping implementation according to debugger tests
Merge branch 'master' of github.com:mbeddr/mbeddr.core
integrated a utility in the debugger for loading icons
refactored debugger's watchable-handling in core
Merge branch 'master' of github.com:mbeddr/mbeddr.core
language for testing dataflow graph
continued debugger refactorings for callstack-related stuff
Merge branch 'master' of github.com:mbeddr/mbeddr.core
fixed import-organizer tests
Merge branch 'master' of github.com:mbeddr/mbeddr.core