add defaults configs
add some notes
open v1.1.5
Merge remote-tracking branch 'qhwa/default-configs' into release-1.1.5

Pulls #9 into v1.1.5
remove trailing comma in ZeroClipboard.defaults
consistently use jQuery.isFunction
Add license and make code origin more clear
Some actual info in readme ;)
Merge pull request #10 from patricklodder/release-1.1.5

[RELEASE] v1.1.5
- Adds default config feature from #9 
- Consistently uses ```jQuery.isFunction``` instead of ```typeof(var) == 'function'```
- Added LICENSE file and cleared up code origin better
- Put some more info in the README
merge upstream