Install bower packages with npm install

(cherry picked from commit 806b0230cd14916907807ced638aea066465e1d4)
Remove the Xcode note in readme

(cherry picked from commit 24571f4a730ea51127fe5f1f798c1283a2b8cc8a)
Change Windows install explanation

(cherry picked from commit 831a532c3ce9b014ed7c0f8fd910a0a2fc0aa5aa)
Fix paths for qunit files

(cherry picked from commit c8c32f1d0583711355c593fb4c84332bfba18254)