Various tweaks and changes

- Add new font and use that for Unitframes, Actionbars, Datatexts and Chat Tabs.
- Allow macrotext font on Actionbars to use general Actionbars font.
- Allow RaidDebuff Indicator font to use general Unitframes font.
- Re-add 'resting' tag with customized return output.
- Add missing settings to profile.lua and tweak a couple of settings.
- Rename Chat window from 'Whisper' to 'Whisp.'