Upgrade to VS2012,  boost 1.54, WTL8.1

* Upgrade to ( win7 and above are supported, winxp is not supported)
- VS2012 ( without any updates )
- boost 1.54 ( built against v110 toolset)
- WTL8.1 ( took the latest one, http://sourceforge.net/projects/wtl/files/WTL%208.1/WTL%208.1.12085/)
* tests.exe green