don't set alpha to 0 at beginning of fade out animation

Conflicts:
	MBProgressHUD.m
Merge commit '30814ccfa53418af8ca93dfa9c0e5e10f9484f49'
[update]update podspec
Typo fix in readme

"setters are hoverer considered" should be "setters are however considered"
Typo fixes

Various typos in header comments.
Merge pull request #42 from tewha/patch-3

Typo fix in readme
Merge pull request #43 from tewha/patch-4

Typo fixes
Performed recommended Xcode 4.6 project updates.
Moved initial setTransformForCurrentOrientation check to didMoveToSuperview. fixes #102
Merge commit '09284ec788276d2127fb077d7385d04468d34bb3'