GPII-177: Adding get function to the Orca settings handler

We need to implement a get function in the Orca setting handler before
adding integration tests for the Orca Screen Reader.
GPII-177: Update GSettings Settings Handler according to the new API

  * Remove "options" block from "get" and "set" return payloads
  * Update gsettingsBridge tests
GPII-177: Update Orca Settings Handler according to the new API

Remove "options" block from "get" and "set" return payloads
GPII-177: Cleaning up code based up on Yura's comments

[changes]
  * Adding space between args on gsettingsBridge
  * Using fluid.get and fluid.set when possible
  * Adding PROFILE_ID constant
GPII-177: Missing change from the latest commit
GPII-177: Updated install script to checkout v0.2 of universal
GPII-177: Addressing last comment from Yura about fluid.set
Merge remote-tracking branch 'javihernandez/GPII-177' into v0.2

* javihernandez/GPII-177:
  GPII-177: Addressing last comment from Yura about fluid.set
  GPII-177: Updated install script to checkout v0.2 of universal
  GPII-177: Missing change from the latest commit
  GPII-177: Cleaning up code based up on Yura's comments
  GPII-177: Update Orca Settings Handler according to the new API
  GPII-177: Update GSettings Settings Handler according to the new API
  GPII-177: Adding get function to the Orca settings handler