1st version of semantic analyzer
Test for 1st milestone test: 'error_undef_return.prog' written
Initialization check

Maybe an error, if isDeclared in Symboltable is recursive, so we don't
get the right Symboltable for our initalization.
added BlockNode handling to SemanticAnalyser
added symbol-table-stub and adjusted tests
style formatted and stub symbol table extended
added tests
SemanticAnalyser extended to MS1 functionality
logging added
1st version of semantic analyzer
Test for 1st milestone test: 'error_undef_return.prog' written
Initialization check

Maybe an error, if isDeclared in Symboltable is recursive, so we don't
get the right Symboltable for our initalization.
added BlockNode handling to SemanticAnalyser
added symbol-table-stub and adjusted tests
style formatted and stub symbol table extended
added tests
SemanticAnalyser extended to MS1 functionality
logging added
[SemanticAnalyser] Added ast to build.xml
Merge branch 'semantic_analyzer' of github.com:swp-uebersetzerbau-ss13/fuc into semantic_analyzer