How do I add a library project (such as Sherlock ABS) to Android Studio?
(Not to the old ADT Eclipse-based bundle, but to the new Android Studio.)
I have just found an easier way (rather than writing directly into the .gradle files).
This is for Android Studio 1.1.0.
Menu File -> New Module...:
Click on "Import Existing Project".
Select the desired library and the desired module.
Click finish. Android Studio will import the library into your project. It will sync gradle files.
Add the imported module to your project's dependencies.
Right click on the app folder -> Open Module settings -> go to the dependencies tab -> Click on the '+' button -> click on Module Dependency.
The library module will be then added to the project's dependencies.
???
Profit