Move icons into theme specific folder
conf: Update version number to a more sensible fictional number
Add build_helpers module, with modified material from DistUtilsExtra
Move help files out of meld folder
build_helpers: Move in help builder
meld: Drop GTK and GLib requirements slightly
Minor moves toward py3k compatibility
meld: Add an import check for GtkSourceView
Migrate build_extra across as well
build_helpers: Add a copyright header

The original source doesn't actually use copyright headers anywhere;
the header here is based on the LICENSE file and the Debian metadata.
Authors list is guessed. The Canonical copyright appears on several
related files, but without any current dates.
build_helpers: Move in i18n helper

This is the last used piece of python-distutils-extra that we need.
build_helpers: De-generify some of the i18n build
build_helpers: Refactor some of the i18n build logic
Make appdata translatable
build_helpers: Translate desktop and appdata files
build_helpers: More i18n building
conf: Attempt to support installed use
build_helpers: Don't install all files in icon folders, just png and svg
Add a manifest file for sdist-ing and fix doc install
Update git ignore file for distutils