Allow click-through of toolbar items.
Merge pull request #170 from corliss/dev3

Latest test cases.
Fix up drawable tests: don’t use off screen bitmap by default, set size of drawable correctly for scrolling.  Fixes #169
Draw text section: use font family names from font instead of hard coding, to test that the correct names are returned.
Merge remote-tracking branch 'picoe/develop' into dev3