Create skeleton for rake task to install butter_knife

[ticket: 64612122]
Add knife v11.4.4 to Gemfile

- downgraded to "json", "1.7.7", for compatibility with "chef", "11.4.4"
- downgraded to "uglifier", "2.2.1", for compatibility wutg "json", "1.7.7"
- removed sdoc, which is incompatible with version 1.7.7 of json, and won't be used anytime soon

[ticket: 64623196]
Add knife-block to Gemfile

[ticket: 64630170]