Made My Uploads page use back arrow for consistency.

Change-Id: Ieac074ed44902349613239fddb733ff33b960eed
Made text box not underlap nav bar when keyboard appears.

Needed based on previous commit which leaves nav bar in place when details is scrolled to top.

Change-Id: I10fd0e6e16a925bd1bef8c24d0dd9dafce1aa419
Made nav back buttons more consistent between iOS 6 and 7.

Change-Id: I0d76c2f223694c82840c7d2aacbf053330a297bc
Fix gallery top spacing for iOS 7.

Change-Id: Ib2cd282c5e2953c18fe524337fbe2d85d4d13027