Console: Make sure excluded_tags is set

When listing the custom cartridge type (i.e., the diy cartridge), make
sure that excluded_tags in case it was not set earlier.  This commit
fixes bug 982882.
Bug 969876 - Don't run execute_connections if there are no add/remove component ops
Bug 982994 - Minor: add version/help options to usage info
Make idler test use mock instead of scenario table
Merge pull request #3076 from pmorie/dev/test_cleanup

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Merge pull request #3084 from danmcp/master

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Merge pull request #3072 from pravisankar/dev/ravi/bug969876

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Merge pull request #3037 from Miciah/console-application_types-custom_types-fix

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