Updated buildscript.mk to include build of TB unit tests and samples.

Updated buildscript.mk to include build of TB unit tests and samples.

I oops'd and some how overlooked this with the 'all_dev' target.

Patch 2: Swapping spots with parent. (ie. Switching parent-child dependency
between this and Change-Id: I1d20b09a095b320971765733b4343a7b781da1d9)

Patch 3: Bailing out on unit tests! The unit tests are rubbish. They
are wayyyyy out of date and WILL NOT build. THe unit test target is/was
pointing to some sample app by Jesse (that i presume was an accident
because it was put into the unit tests directory). This means we have NO
unit tests. This is bad.

Patch 4: Rebase onto master.

Change-Id: Ia9ca015a09bc3408c3ced99eb0432e0fb0814a12