company-keywords: fix interactive invocation
company-pysmell: update the commentary

Pysmell hasn't been updated in 4 years, there's no reason why the back-end
would stop working.
company--multi-backend-adapter: only use candidates from back-ends with the same prefix
company--multi-backend-adapter: use cl-loop and nconc
company-eclim: reorder commentary text
company-dabbrev-code: use case-fold-search

e7c7ba09d9b0bd859b0561009be5eab5020593ed was only half right.
Phrasing
company--pseudo-tooltip-height: account for wrapped lines
company-ropemacs: defer loading pymacs and ropemacs
company-backends: remove 'company-pysmell
Phrasing
Fix company-echo-frontend