Update the README and add some markdown
Add utility methods for reading and writing text (mostly sysfs) files.
Support multiple source paths

This will not verify for duplicate classes yet, so be careful not
to place duplicate implementations on multiple locations
Add a class for display gamma control

Same basic concept as kcal, but it accepts and manages multiple RGB triplets

Change-Id: I8fffc94b439a366a5aa38277ae971ab3aaa3589b
Allow different maximum vales for each gamma control.

Change-Id: I263976d442c2754d46bfad76a795dba3152d820e
Hardware: Add AdaptiveBacklight support

Patchset 2: Fix javadoc
Patchset 3: Rename to AdaptiveBacklight
Patchset 4: Fix typo in javadoc comment

Change-Id: I50190833da67d7f574d42d48a52eb5c610b4966e
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>