Tracebacks are now catchable with ignore_errors and have streamlined output.  Also removes 'baby-JSON' for bash modules.

This commit allows to specify arrays in [group:vars] block.

Signed-off-by: Oleg Bulatov <oleg@bulatov.me>

0. Uncomment the test.
1. Test fails.
2. Make vars unique per file in test inventory files.
3. Modify token addition to not ast.literal_eval(v) a variable containing a hash.
4. Modify vars to have an escape in test inventory file.
5. Catch exceptions explicitly. Any unknown exceptions should be a bug.
6. Test passes.

This reverts commit a8082874, reversing
changes made to 6129ea75.

It came up that fixing this unit test may relate to another ticket that is open. This work allows us to uncomment this unit test by fixing how we pars variables allowing a quoted variable to contain a '#'.

Work also went into cleaning up some of the test data to clarify what was working.

Lastly work went into cleaning up formatting so that the code is easily read.