Fixes issue #34
Added screenshot to pod spec
smooth curve using bezierpath
Expose smooth option through delegate, fix diffs
added check for y-value difference if exceeds threshold
changed compare condition to using slope instead of vertical diff
PR #39 cleanup
More style updates
updated change log, pod spec, read me
smooth curve fix for more straight line cases
missing variable in condition
Merge pull request #45 from ktran03/smoothCurveFix

Smooth curve fix
updated change log, pod spec, etc
Fixes issue #46