Porting UI updates from hippie station

Ported from https://github.com/Lawligagger/Hippie-Station-13
Up to you guys. I like them, and it's been fucking ages since anyone's touched the UI. (at least on non-goon servers)
Not included: New oxygen loss indicator, because they removed the frowny face from it and it sucks.
![norm](https://cloud.githubusercontent.com/assets/7247232/4765417/324f5410-5b3d-11e4-8003-5cda2cf4b16d.gif) ![red](https://cloud.githubusercontent.com/assets/7247232/4765418/36a96dca-5b3d-11e4-9278-96fc925b28a0.gif) ![crit](https://cloud.githubusercontent.com/assets/7247232/4765420/3a04df54-5b3d-11e4-890a-234766fd42af.gif) ![ded](https://cloud.githubusercontent.com/assets/7247232/4765423/41c114ec-5b3d-11e4-9cb5-5e12876fbd4c.gif)

![hi](https://cloud.githubusercontent.com/assets/7247232/4765428/49eb4c82-5b3d-11e4-9494-bca5389982ab.gif) ![lo](https://cloud.githubusercontent.com/assets/7247232/4765430/4c90d8ee-5b3d-11e4-8d63-7a3bb72d6111.gif) [pressure, not temp]

![fh](https://cloud.githubusercontent.com/assets/7247232/4765431/5040c24c-5b3d-11e4-9277-29e902fbf615.gif) ![fm](https://cloud.githubusercontent.com/assets/7247232/4765432/51f1ce2e-5b3d-11e4-82c7-ae1899ba1230.gif) ![fl](https://cloud.githubusercontent.com/assets/7247232/4765433/5312a4ea-5b3d-11e4-9997-c3f8ab45ae1b.gif)

All together for reference:
![clip 2014-10-23 at 09 55 48](https://cloud.githubusercontent.com/assets/7247232/4765437/66ffb2fe-5b3d-11e4-8d2e-de5020c00ce1.png)

Opinions below, please.