gstreamer: drop manual CFLAGS

These were cargo-culted from MacPorts. The build system passes different
flags.
gstreamer: set env var instead of appending
gst-plugins-good: set env var instead of appending
enchant: make python an optional dependency.
bottle_version: support fontforge scheme.
hexchat: make python an optional dependency.
pyqwt: make python a hard dependency.
pyqwt: set PYTHONPATH in test.
vte: make python a hard dependency.
vte: add dependency on pygobject.
vte3: make python a hard dependency.
Don't assume cflags is non-nil

Fixes #29284.
recipe for Laravel's command line generator, Craft

Craft is like the Rails executable, but for Laravel.
To confuse things, although it is called "Laravel Craft" (in its own version info) the executable is called `laravel`, but it has a different version number from the general Laravel project (which is 4.1 currently, while Laravel Craft is 1.0.0).
Update laravel_craft.rb
laravel_craft: add 1.0.0 bottle.