Update README.mdown

Properly hides the HUD at completion.
MBLabelAlignmentCenter doesn't need to be in header, could end up with multi-declaration of value
Fix typo in MBProgressHUD

Typo (or aggressive find/replace) caused an "x-axis" (correct)
and "y-ayis" (wot?).
Merge pull request #44 from tewha/patch-5

Fix typo in MBProgressHUD
Additional note regarding the Static library integration.
Performed recommended Xcode 4.6 project updates.
Updated license and added a LICENSE file.
Merge pull request #112 from coryallegory/master

MBLabelAlignmentCenter risk of being defined multiple times
Merge pull request #109 from dnstevenson/master

Fixed example in Readme
README cleanup and cocoapods instructions.
Added podspec for version 0.6.
Merge branch 'cocoapods'
Version bump and change log update.
Removed screenshot entries from the podspec.
Merge commit 'bd3fee3df57b3677e23df0d9db900d253667f6b9' into newstex/develop