Update Canon A2300 A2400.xml

Removing Portrait orientation
Update Canon ELPH 115 130 IS.xml

Removing Portrait orientation
Update Canon ELPH 330 HS.xml

Removing Portrait orientation
Update Canon ELPH 520 HS.xml

Removing Portrait orientation
Update Canon S110 S120.xml

Removing Portrait orientation
Update Canon ELPH 110 320 HS.xml

Removing Portrait orientation
Update Canon SX260 SX280 HS.xml

Removing orientation and updated focal length
Merge pull request #671 from arthurbenemann/camera_info_all_to_landscape

Camera Info to landscape
HeartBeat: Fixed problem with the Drone HeartBeat detector.

It was re-staring the heartbeat counter every time there wasw a disconnect, which in turn caused a new FIRST_HEARTBEAT event every-time a new screen was open.
Merge pull request #674 from arthurbenemann/HeartBeat_fix

HeartBeat: Fixed problem with the Drone HeartBeat detector.
Parameters: Fixed the toast message on the parameters fragment
Parameters: Renamed the Progress Dialog for more meaningful name.
Merge pull request #678 from arthurbenemann/ParametersFragment_Fix

Parameters fragment fix
Version: Releasing version 2.2.3
Fix droidplanner issue #675: updated the flight mode spinner bar so that its view is updated only after confirmation of the mode change by the drone.
Code cleanup.
Update README.md

Added play store download button and beta info, and cleaned up developer info.
Merge pull request #687 from tensafefrogs/master

Update README.md
Merge pull request #686 from ne0fhyk/fix_issue_675

Fix incorrect Mode Button behavior #675
UI: Change the way the UI responds to a wrongly made polygon.