plug logic for the update and amend library
Merge pull request #203 from cordoval/182-self-update-command

This PR was merged into cordoval:master branch.

Discussion
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add self update capability

                     
|Q             |A   |
|-------------|-----|                     
|Bug Fix?:     |no  |
|New Feature?: |yes |
|BC Breaks?:   |no  |
|Deprecations?:|no  |
|Tests Pass?:  |yes |
|Fixed Tickets:|#182|
|License:      |MIT |
|Doc PR:       |no  |
                     

self update command

Commits
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84a18ffdd402b5524a2eb3f8c592c619dd45eb64 plug logic for the update and amend library cordoval