refactored DefaultLocalVariableUsageDetectorTest
refactored ClangFunctionExtractor
ClangFunctionExtractor refactoring
added const to members where possible
changed DefaultFunctionLocator into getFunctionFromAstInSelection, removed FunctionLocator interface
removed StatementLocator interface
changed DefaultStatementLocator into findStatementsInFunctionOverlappingSelection
runTranslationUnitHandlerOnFile now takes a functor
Merge branch 'master' of https://github.com/rafalprzywarski/libcppmanip