Remove attic directory as no longer needed now we have a proper expre…

…ssion parser (ned14#61).

v1.22 release.

v1.21 release.

Issue ned14#17 Fix failure to issue ``#line`` directive for first inc…

…lude file in a file. Thanks to Sei-Lisa for reporting this.

Tag release

Fix missing Readme.rst in pypi package

Try again to persuade python to load pcpp.cmd