OP-1339 System Health Improvement
OP-1258 update toolchain installer for Linux to 4.8-2013q4, change ARM_SDK_DIR accordingly
OP-1258 updated to 2014q1, also allow to manually specify MD5 file url

Conflicts:
	make/tools.mk
OP-1258 make TOOL_INSTALL_TEMPLATE md5 url optional so that it defaults to fileurl.md5
OP-1258 fix an issue with Windows package (root folder is missing in the zip file)
OP-1258 fix an issue with all_sdk_install on windows (still pointing to deprecated targets)
OP-1350 Add takeofflocation UAVO
OP-1350 add uavo to GCS
OP-1350 add uavo to DiscoveryF4Bare
OP-1350 add a TakeOffLocation Handler to manualcontrol
OP-1350 fix simposix target
OP-1350 change destination for ReturnToBase to takeoffLocation
OP-1350 split Init function out of Handler, added missing UAVO initalize, cleanup code
OP-1350 Rename ReturnToHomeAltitudeOffset to ReturnToBaseAltitudeOffset
OP-1352 Headwind-improvements for FixedWingPathFollower
OP-1350 fix a bug that overwrite TakeOffLocation when changing mode to preset after an arming sequence. cleanup and get rid of "pending" status
OP-1350 remove checks for valid TakeOffLocation. It is already handled in takeoffLocationHandler
OP-1350 fix a review defect(a set intead of TakeOffLocationStatusGetget). Check if status is valid beside locationSet
OP-1352 redesigned course calculation to take complete wind vector into account
OP-1352 cleaned up some code comments