Fix exceptions

Fix exceptions, add new checks

Merge pull request #133 from CiscoDevNet/dev

Enhance Elasticsearch indices version check

Merge pull request #120 from CiscoDevNet/dev

Dev

Merge pull request #105 from CiscoDevNet/rukapse/dev

Rukapse/dev

Merge pull request #51 from CiscoDevNet/hkhairna/dev

Following bugs fixed:

1. Add dpi_estimate_ondeday = None in critical check nine —> elif dpi_status == 'enable': —> elif index['index'] == 'Approute' and index['status'] != 'success':

2. Remove free -g command as we required only free -giga

name change