A bit of inline comments for outputformat.drush.inc
Issue #1959466 by moshe weitzman: Rename csv-list outputformat implementation to csv.
Remove ini, ini-section output formats.

Replace with json.
Fix broken unit tests due to last commit on output formats.
Issue #2029493 by helmo: Fixed testBackendMethodPost fails on php 5.4.
Issue #1841324 by ergonlogic, greg.1.anderson, anarcat: Requiring php 5.3.5 for Drush is premature.
Issue #2019059 by jp.stacey, ergonlogic: Fixed phpunit installation documentation needs updating.
Rename export outputformat implementation to var_export. Always show json and yaml outputformats in help.
Issue #2029493 by helmo: Fixed testBackendMethodPost fails on php 5.4.
Enable testing of php 5.4 on travis