hop_tasks: removed enable-type-checks flag

Thanks, Kathy
https://plus.google.com/105904968710974272643/posts/BnHt67xKyKL
hop_tasks: toto in unit_test
tool/hop_runner: fixed analyze_test_libs
test/hop: nits to runTaskInTestRunner
hop: renamed _SubTaskContext to _TaskContext
hop: task registration methods return the registered task

...is nice
hop: _LoggerParent/_LoggerChild fun...
hop: TaskRegistry: pulled name validation out into a state method
updated dependencies, flagging 0.21.1-dev
v0.22.0
Starting on task chaining

Issue #16
hop: chain tasks by name
hop: named description params for Task methods

thanks, @financeCoding
hop_tasks: removed old TODO
flagging dev version
updated to latest bot_io without silly issues
Merge branch 'master' into copy_dir