Hardened against null modpack builds from making it to the update
thread.

Signed-off-by: Dalton Pelc <daltonjpelc@gmail.com>
Fixed NPE in DynamicButton when the Icon was null. Needs a proper fix
where the icon is never null in the future.

Signed-off-by: Dalton Pelc <daltonjpelc@gmail.com>
Added more hardening against null modpack builds.

Signed-off-by: Dalton Pelc <daltonjpelc@gmail.com>
Changed over launcher to LWJGL 2.9 for everyone, and removed java 7
warning from OSX

Signed-off-by: Dalton Pelc <daltonjpelc@gmail.com>
Fixed md5 checking

Signed-off-by: Dalton Pelc <daltonjpelc@gmail.com>
Fixed natives not correctly updating on new downloads

Signed-off-by: Dalton Pelc <daltonjpelc@gmail.com>
Removed always updating LWJGL version temporarily for testing

Signed-off-by: Dalton Pelc <daltonjpelc@gmail.com>
Merge branch 'master' of https://github.com/TechnicPack/TechnicLauncher