HALO: Option to pause the underlying app (2/2)

- adds an option to pause the active app when using HALO
- this is enabled by default for devices with low memory
- (currently: <640MB RAM available to the kernel)

Change-Id: I0a94cc2f4fdf2e02da3e3dd0cb63ddea844ae8ef
Merge pull request #4 from PAC-man/cm-10.1

 HALO: Option to pause the underlying app (2/2)