Merge pull request #97 from trainman419/master

Add armhf support to single_deb.py
fixing urllib usage
remove electric doc job
add priority value to static jobs
increase number of log (and days) to keep
update notification emails to google groups
reformat xml to match jenkins config output
fix escaping at sign
escape at sign only in em templates
add description setter for static python release jobs
rename static release jobs
invert priority values
add hydro static release jobs
add cycle detection for release job generation (#98)
splitting cache rebuilding into groovy and hydro specific
updating description
Merge pull request #98 from willowgarage/cycle_detection

Do not allow the configuration of circular dependencies
update sync level for groovy raised and hydro seperated and lowered
cleaning up pep8 violations.
don't report packages without version as missing so we don't try to trigger jobs that don't exist