Updated Brazilian Portuguese translation
Updated Spanish translation
Updated Slovenian translation
Updated Czech translation
environment script: get back to two directories up after devtools.

As we go to $m/validate in that case.
keyframes: If the length of the line is inferior to one pixel,

don't draw it.
effects: Commit the timeline when adding an effect.
render: Add a static _factory_formats static field.

This field is used because of introspection problems in
fixating the static_pad_templates, for some reason we can't do
it more than once, so we keep the result stored.
bin: Do not build GI and PyGobject if not necessary
bin: Better handling of gst version and add default scenario path

We can now override needed version through en variables
Updated French translation

Thanks to Mickael Albertus and Alain Lojewski.
renderingdialog.ui: Mark the Render button's label as translatable

This makes its translations actually show up
Updated Galician translations
Updated Galician translations
bin: Make sure the PyGobject path is always first in PYTHONPATH

Otherwize we get issue when importing it has it picks the wrong
__init__.py file for overrides
bin: Build gst-devtools only if in developer mode
Finnish translation update
Updated Traditional Chinese translation(Hong Kong and Taiwan)
project: Always set auto-transition to true on newly created timelines
Updated Serbian translation