Trying to help clean up the public issue tracker (and show some love to...

Trying to help clean up the public issue tracker (and show some love to external developers) by taking care of a bunch of typos that were reported.

List of issues from https://code.google.com/p/android/issues that are fixed by this CL: 183476,183249,183248,183241,183222,183142,183093,183329,182385,182311,182193,182019,73149,181589,179740,179384,178322,178189,178086,178020,177169,176312,175138,172322,172030,171820,170647,167288,163574,161580,161041,159199,151347,144290,136137,132505

Change-Id: I2e96f7444048abd2f666c75bd6ab9640019afb75