Makefile: Remove remnants of test-publish-pypi and sourceforge
Minor cleanups
Bugfix: Correctly roundtrip PHP with spaces after array

This is necessary after we added support for blank spaces after array
declaration in 05000373.

Fixes #3231.
Docs: Remove stray character
Cleanup: Fix stray reference to SourceForge
Releasing docs: Some cleanups
Releasing docs: Minor cleanups
Revert "Cleanup: Fix stray reference to SourceForge"

This reverts commit 958521f529f9514f33c0df23b84d2affe688889d.
po2moz: handle files with fullstop in filename

E.g. services.device.properties.po - old logic got confused by first
fullstop when extracting the extension properties.po.  So now we find
from the right.
Tests: unhide some tests

Some tests have been hidden because of duplicate method names.  Thanks
Codacy
https://www.codacy.com/public/dwayne/translate/file/169879100/source?bid=1990609#l455
Travis: speedup lxml install
docs: build in parallel

Speeds up Travis builds