* [presubmit] Enforce language attribute in projectt.yaml to be always set.
* Update documentation, better presubmit check, new project template.
* add docstring to templates.py
* Add example values in the project.yaml template and remove python value for now
* Add "project: c++" to 256 projects
* format
* Add labels and selective_unpack sections to the presubmit check
* fix incorrect auto_ccs format in three projects
* fix nss emails after rebase
* Refs #925 -- Added build for spidermonkey
* review feedback
* Switch to the git mirror
git has --depth, which lets us speed up clones. we can switch to the hg upstream once @durin42 implements shallow clones for hg :-)
* Clone this as m-c
Tyson Smith