Incrementing minor version to 0.7.5
Update raspbian version to 2013-09-25
Merge pull request #17 from foosel/picam-fix

Switch mjpg-streamer-raspicam parameter -d to -fps
Add a script to automate the release renaming
Add minor versions digit to devel branch
Update image to 2014-01-07-wheezy-raspbian
Change official mirror to docstech.net
Merge branch devel, version 0.8.0
Add logo png file so we can link it in the readme
Scale logo
Use init script for octoprint and setup.py for installation

Replaces the octoPrintStart script and custom rc.local entry with
a real init script and corresponding entries into rc*.d
Introduced image folder for Raspbian images and local config overrides

Creating a file config.local now allows overriding the build config
without the risk of accidentally committing the changes into the
repository.

THe config script now (unless overridden) determines the image to use
for the build by taking the most recent file matching the wildcard
*-raspbian.zip from the newly introduced image/ subfolder.