Reorganized files and updated the Readme with installation instructions.
reorganized the files
still moving files around
moving files
Improve needle animations when user force a needle animation before the
previous needle animation ends.
Merge pull request #1 from daedalus87/fluid_animations

Needle animation merged
use constraints when available
made demo and annotated gauge compatible with iOS5
set project deploy target to iOS 5.0
add tab bar icons for demo
better simple gauge icon for tab bar
add podspec
Merge pull request #2 from paulz/ios5

iOS 5 compatibility
fix github URL, use tag for sources
Merge pull request #3 from paulz/ios5

fix github URL, use tag for sources
Fixed a bug where non-zero minimum range values were not generating the correct angle