Fixed linechart Legend

First draft @ LineChart and Precipitation

Legend for each bar (remove debug code)

Add legend for each bar

Fix nav bar & Improve Landscape mode

Display Status Bar & use viewWillTransitionToSize to handle landscape mode

Auto-layout, handle landscape, Universal Layout

Animate refresh

Fix bug with setValueText being defined twice.

Converted chartInformationView to swift

Converted tooltip from Objective C to swift

Move footer and header from Objective C to swift

Update repo

add readme

Initial Commit