Start documenting changes for release v1.7.3

Author: iMichka

docs/history.rst

@@ -11,6 +11,29 @@ to python 3 (keeping it compatible with python 2).
 In Mai 2014, Michka Popoff and the Insight Software Consortium revived pygccxml
 by setting up a git repositery on github, hosted along with gccxml.
 
+Version 1.7.3 (not yet released)
+--------------------------------
+
+1. C++xx flags are now correctly passed to castxml. Allowed flags are:
+   "-std=c++98", "-std=c++03", "-std=c++11", "-std=c++14", "-std=c++1z"
+   Thanks to Mark Moll for the fix.
+
+2. type_traits.smart_pointer_traits will now classify std::shared_ptr as a
+   smart pointer (only boost::shared_ptr was recognised before)
+
+3. Fix a regression in undname_creator_t.format_argtypes
+
+4. Remove unittest2 dependency for testing with python 2.6
+
+5. Testing: test with std::tr1 unordered containers for gcc >= 4.4.7 and castxml
+
+6. Cosmetic fix for generator name printed to stdout when launching unit tests
+
+7. Fix simple typo in example.py comment
+
+Thanks to the following people for their contribution to this release:
+Mark Moll, Ashish Sadanandan, Mark Oates
+
 Version 1.7.2
 -------------