global refactoring / optimizations / fix #36

- refactoring of hooks
- angleOffset, angleArc (fix #36)
- canvas pre-rendering
- (lot of) optimizations
- 5+ digit support
- improved positioning of the input
- Knob is now part of Kontrol ^^
- tron skin removed
- ticks removed
numpad support
IIFE had disappeared / thanks @eliotj
add ability to independently set input (middle text) color
add inputColor option doc
add ability to set line cap style (eg, to rounded)
add line cap doc
add line cap option to doc
branching / tagging 1.2.0
Release 1.2.0
Add jQuery manifest
jquery manifest
add some popular tags
Merge pull request #63 from jaketrent/master

Add ability to set input color & line cap style @jaketrent
Update README.md
Add download link
Release 1.2.2
use of $ passed to the ready() function / compat with noConflict
data-linecap=round example
Added stepping functionality