Geotools: Extract useful piece of code into new method.
Mission: Implement ConditionYaw on Core
Core: Fix conditionYaw implementation
Core: Decouple condition_yaw getters and setters
Android: Implement the UI for ConditionYaw
Android: Removed unused layout file
Merge pull request #1251 from DroidPlanner/conditionYaw

Condition yaw
GuidedPoint: Check for valid guided coordinate sending
Maps: Draw the polygon contour
Merge pull request #1256 from DroidPlanner/guidedCheck_issue1220

GuidedPoint: Check for valid guided coordinate before sending
SurveyUI: Implement the survey markers movement.
Merge pull request #1257 from DroidPlanner/polygonContour

Maps: Draw the polygon contour
Core: Just use previous altitude if it's a item that makes sense
InfoBar: Show consumed mAh buy default, and energy on the overflow menu
Merge pull request #1261 from DroidPlanner/issue1258

Core: Just use previous altitude if it's a item that makes sense
Merge pull request #1262 from DroidPlanner/issue1259

InfoBar: Show consumed mAh buy default, and energy on the overflow menu
Editor: Renamed Set Yaw command
Merge pull request #1263 from DroidPlanner/setYaw

Editor: Renamed Set Yaw command
Version: Releasing version 2.8.4
Merge branch 'master' into beta