* removing Makefile.PL in {zlib,libpng} was done twice

  This was unnecessary. Now it's only done once.
reject eventGenerate on windows that have no XID
test to show what happens with early calls to eventGenerate
* MANIFEST update (new test file eventGenerate.t)
* missing geometry
Merge branch 'event-generate-no-xid'

This solves https://github.com/eserte/perl-tk/pull/1