PyCXX V6.2.7 released

[Barry S. <ba...@ba...>]

Version 6.2.7 (28-Apr-2016)
 * Fix missing ptr__Unicode_Type.
 * Fixes from lea...@gm... make python2 also remember the m_module and add accessor functions.
 * Fix for indirection issues from Vivian De Smedt.
 * Update to work with latest Microsoft Visual C++ for python 2.7. All test run in Win32 and Win64.
 * PyCXX.html documention has been updated, especially with 2TO3 information.
 * Use delete[] for objects allocated with new[].

Barry