Ignore doc build files

Change-Id: I064eaa43ed603143d1cbb28669c8b0cd1e43a252
Misc minor fixes to taskflow/examples

Change-Id: Iecf7693239d93e5a43cf5470bcfcdec605410ce4
Added htmlcov folder to .gitignore

Change-Id: Iea321a98929285af7bde5e013d4fdd46040da5c2
Merge "Misc minor fixes to taskflow/examples"
Merge "Added htmlcov folder to .gitignore"
Merge "Ignore doc build files"