Split jira aliases into separate file

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Move zsh.d settings to shell_settings dir

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Split out settings into bash and zsh

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Fix ls aliasing

Signed-off-by: Michael Barton <mail@michaelbarton.me.uk>
Merge branch 'master' of github.com:michaelbarton/dotfiles