Set our vps as new online server.
Removed 'can use existing stkaddons' account from message.
Fixed server version to be 2.
Added certificate for our vps.
Missing button in grand prix editor name dialog #1765
Merge remote-tracking branch 'upstream/master'
Friends Search bar goes off the bottom of the screen #1762
Fix some typos
Merge remote-tracking branch 'origin/master' into new_server

Conflicts:
	src/online/http_request.cpp
Updated the URL to work with new server configuration.
Disable CURLOPT_SSL_VERIFYHOST on OSX, since it doesn't work (with
osx's curl version at least).
Removed option to disable CURLOPT_SSL_VERIFYPEER, since it's not needed
anymore.
Switch from IP address to addons.supertuxkart.net (including new
certificate).
Frustrum shader is updated to new system
Port colored lines too
Revert "Friends Search bar goes off the bottom of the screen #1762"

This reverts commit f98a169e9c7473b56fcacdf6abcfbce95528e05d.
Merge branch 'Math07_master'
Cleanup skybox preparation code
Apply math07's patch for taking padding into account in height="fit", fixes #1762
MInor GUI XML cleanup