Bug 13564 - Fix crash in abw to HTML conversion.

Uplifted from master

git-svn-id: svn+ssh://svn.abisource.com/svnroot/abiword/branches/ABI-3-0-0-STABLE@33532 bcba8976-2d24-0410-9c9c-aab3bd5fdfd6
Bug 13565 - Missing cdump.pl in the tarball.

Uplifted from master

git-svn-id: svn+ssh://svn.abisource.com/svnroot/abiword/branches/ABI-3-0-0-STABLE@33535 bcba8976-2d24-0410-9c9c-aab3bd5fdfd6
Fix 13572: libabiword_init annotation is wrong (Daniel Narvaez <dwnarvaez@gmail.com>). Please backport.

Cherry-pick from trunk@33573.

git-svn-id: svn+ssh://svn.abisource.com/svnroot/abiword/branches/ABI-3-0-0-STABLE@33574 bcba8976-2d24-0410-9c9c-aab3bd5fdfd6
Fix 13548: Need method to hide/show rulers in the python bindings (Gonzalo Odiard <godiard@gmail.com>)

Cherry-pick from trunk@33575.

git-svn-id: svn+ssh://svn.abisource.com/svnroot/abiword/branches/ABI-3-0-0-STABLE@33576 bcba8976-2d24-0410-9c9c-aab3bd5fdfd6
Missing include. (reported over IRC)

git-svn-id: svn+ssh://svn.abisource.com/svnroot/abiword/branches/ABI-3-0-0-STABLE@33625 bcba8976-2d24-0410-9c9c-aab3bd5fdfd6