Fixed location of auto-save-list files
Update packages.el

Fix typo preventing layer initialisation.

Submitting this PR via the github online editor--let me know if anything weird happens.
Intuitive window splitting keybindings
Reformat doc for split window key bindings
Fixes #270 Evil keybindings no longer work in *Scratch* buffer
Merge github and git layers

Github support is enabled with `git-enable-github-support`
variable, to be put in `dotspacemacs/init`
Update git layer readme toc