Log Message:
Update textproc/coccigrep to 1.16

pkgsrc changes:
 - Switch MASTER_SITES to MASTER_SITE_GITHUB that also contains newer
   releases
 - Delete PYTHON_VERSIONS_INCOMPATIBLE, now coccigrep is compatible
   also with Python 3.

Changes:
1.16
----
 - Add support for Python 3.4

1.15
----
 - Add Python 3 support

1.14
----
 - Various bug fixes and improvements