Update version number to 0.9.2.

Version number update.

Fix before target buggy anijs#44

Change version to 0.9.0

Update version number to v0.8.1

Upgrade the version number

Update to 0.7.2 Version

Change e.target by e.currentTarget when using
target word.

Fix, the $addClass and $toggleClass bugs.

Update version to 0.7.0.

Updates de version number to 0.6.0