add .gitignore
ignore ert.el
defensive quoting
avoid byte-compiling on Emacs 22.x
revert quoting which choked Travis
though it is apparently sensible
new URLs for ert.el
the github mirror is gone
the git URLs are faster than the bzr equivalents
backward compat: :risky property
not supported in defcustom for older Emacs
gitignore autoload files
gitignore bytecode files
gitignore backup files
backward compat: :risky property, better fix
doc/comment
support on older Emacs versions
bump versions