Merge pull request #67 from relet/master

Flynet variometer support
Merge pull request #68 from relet/master

color coded lift/sink in the map view
Merge pull request #70 from relet/master

Display Barometer status, and FlyNet tweaks
implement SkyLines live tracking

The SkyLines project (http://skylines.xcsoar.org/) implements a UDP
based live tracking protocol that transmits only 48 bytes for each
fix.  It is more reliable than TCP/HTTP based protocols because it
does not need to wait for a TCP handshake to finish.  It needs to
transmit only one UDP datagram in one direction, which works
reasonably well on flaky mobile networks.

This patch adds the SkyLines tracking protocol to Gaggle.
Merge pull request #71 from MaxKellermann/skylines

implement SkyLines live tracking
minor url correction for openhikingmap tile access
Merge pull request #73 from sletuffe/master

minor url correction for openhikingmap tile access
Switch image tiles format from jpeg to png
Merge pull request #74 from sletuffe/master

Switch image tiles format from jpeg to png for the openhikingmap maps
Fill in some basic information in the github README
Slight fix to emotive comment
Merge pull request #75 from chanoch/master

Update to readme to provide some context
Update documentation - add usage to manual. Restyle.
Merge pull request #76 from chanoch/master

Update to documentation
Added bin, gen, AndroidManifest.out.xml to .gitignore
Corrected error of adding shared/ folder.
Merge pull request #82 from chanoch/gitignore_add_binaries

Gitignore add binaries bin/ and gen/ and AndroidManifest.out.*
Merge branch 'master' of https://github.com/geeksville/Gaggle
update from trunk