Made 'run' and 'multirun' members of ConcreteConfig
Fixed Python module path when building Sphinx docs
Set default phaseID to the empty string

This makes specifying a value for this option unnecessary for most use cases.
Use Cython method for releasing the GIL
Let Cython translate C++ exceptions
Write fatal exceptions to the log file
Removed unnecessary check from printPerformanceStats
Added 'open mode' option to DataFile
Fixed building with Windows Platform SDK
Fixed copying TBB.dll
Removed dependency on boost-filesystem and boost-system
Cleaned up compilation of Boost libraries on Windows
added LogFile::verboseWrite for optional printing
Removed unnecessary close() calls
added __main__ guard to example scripts so they can be imported
Added Doxygen docs for ConvectionSystemSplit