pin the image to use ubuntu 12.04
use other repo channels for updates
add make image/shell

- make image will build the base image to develop autoparts
- make shell will launch a shell environment to test/upload parts
remove site_packages when archive python

make sure that site_packages is empty when we distribute python.

Added `pre_archive` hook
pip and setuptools should distribute their own data
Added Exuberant Ctags part.
rename exuberant_ctags to ctags
Added Google App Engine Go part.
fix alignment of googleappenginego pkg
Merge pull request #129 from nitrous-io/ctags

Enable ctags
Merge pull request #130 from nitrous-io/googleappenginego

Add googleappengine support for golang
update python3 to 3.4.0
bump python3 version to 3.4.1
Merge pull request #131 from nitrous-io/update-python3

Update python3 to 3.4.1
bump apr to 1.5.1
bump apache2 to 2.4.9
Merge pull request #132 from nitrous-io/update-apache2

Update apache2 and dependencies
add libicu-dev, zip, telnet
add php5.4
rename php54 class