added missing returns to GuiCompiler
added .log to gitignore
rework layout of SettingsPanel
update SettingsPanel layout
Merge branch 'master' into dev

Conflicts:
	doc/bytecode_robert_eike/Example.java
	doc/bytecode_robert_eike/Example2.java
	doc/bytecode_robert_eike/Summary.txt
	doc/bytecode_robert_eike/fu-beamer-template.tex
	doc/bytecode_robert_eike/main.tex
parser: seems to be ms3-ready ( except the semantic checks)
fitted implementation of ASTNode to current interface
tested how to click in vertex
remove edges from subtree
removed all edges from subtree
fixed bug
removed nodes from subtree
removed nodes+edges from grpah after clicking (there is a problem with vertex)
implemented changes as they were requested in issue #34
global format, previous format has been criticized
added coverage computation for remaining nodes
zoom in and center work
test fixes at arithmeticunary and assignment nodes
Launching SemanticAnalyzer.v2. will soon replace current analyzer.
changed function name