Restored build in cmd.exe environmet by re-applying change https://github.com/contiki-os/contiki/commit/f3cf57e41b277beebd353a4d76aba2359868b361 which was reverted recently.
Merge pull request #169 from oliverschmidt/master

Restored build in cmd.exe environment.
[ci] Travis needs 32-bit compatibility libraries
Merge pull request #171 from errordeveloper/fix_cs_toolchain_install_script_on_travis

[ci] Travis needs 32-bit compatibility libraries
Split the collect test into collect and collect-lossy to make each individual
travis build complete faster.

Also changed the armgcc download link to a github location.