update Podspec in preperation for release
Support animations with duration of zero
Update podspec file on master to latest released version

Merge commit 'dc89fde'
Support animating UIEdgeInsets on iOS

Adds basic support for UIEdgeInsets. Currently only supporting iOS because edge
insets aren't as common to work with on OS X (e.g. NSScrollView doesn't have
a contentInset property).

Added tests and verified they all pass on the 32- and 64-bit iOS simulators and
under the pop-osx project as well.
Merge pull request #128 from ide/insets

Support animating UIEdgeInsets on iOS
Merge pull request #127 from toulouse/master

Update master to point to 1.0.6
Merge pull request #126 from combinatorial/master

Support animations with duration of zero