Update to jQuery 1.9.0
commit from https://github.com/retlehs/roots/commit/1724452e3520714b0ed8a1f142dbd380497a5698
Add dynamic sidebars to template wrapper https://github.com/retlehs/roots/commit/0abc07d11c5ab0a7d16ec526d884bfc8acb63858
.gitignore additions for bbpress and buddypress
Adding changelog