r26 update release style [ver 2.6.5]
add PolygonGroup::m_type. and  PolygonGroup::set_all_exid_of_trias().
Merge pull request #1 from tmkawanabe/master

add PolygonGroup::m_type. and  PolygonGroup::set_all_exid_of_trias().
Merge [ver 2.6.6]
r28 Introduce getVersionInfo() [ver 2.6.7]
r29 update PolygonGroup::set_all_exid_of_trias() [ver 2.6.8]
to commit libtool build to new version.
Merge branch 'master' of github.com:mindrefugee/Polylib into build-mod

Conflicts:
	configure
	configure.ac
	examples/Makefile.am
	src/Makefile.am