Added files for tutorial 6 -- HDL blackboxing
Added simulink parameter for amber light time.
Merge branch 'master' of https://github.com/casper-astro/tutorials_devel
Merge branch 'master' of https://github.com/casper-astro/tutorials_devel
Recompiled tut3 boffile after sync_gen library block bug fix. This fix corrects for a sync period which is 2 cycles longer than required.
Merge branch 'master' of https://github.com/casper-astro/tutorials_devel