Check if platform is Apple and only add 'rdynamic' GCC compiler flag if it is not. Not needed for Mac OS: http://lists.apple.com/archives/unix-porting/2005/Feb/msg00025.html
clearBinding

added clearBinding function
clearBinding functionality to statement.cpp

clearBinding functionality
Removed weird GCC flags causing problems.
Fix for clang warning about Column's implicit constructor.

>> definition of implicit copy constructor for 'Column' is deprecated because it has a user-declared destructor [-Wdeprecated] <<
Fix cpplint warning for Travis Continuous Integration
Fix cpplint warning for Travis Continuous Integration
deactivating optional build settings
Reactivated dev tools in scripts and Travis CI config file
Statement now stores the status of the last operation so it can be checked in the pointer destructor
Fixed whitespace issues
Update Google Test submodule to latest upstream commit with better Visual Studio 2013 support