No more duplicate elements in company--disabled-backends
global-company-mode: don't turn on in invisible buffers

Before: (js2-time (with-temp-buffer (fundamental-mode))) => 0.0282
After:  (js2-time (with-temp-buffer (fundamental-mode))) => 0.0018
company-clang-guess-prefix: don't error out when no such file
company-clang: show meta
company-semantic: Don't load any Semantic packages ourselves
company--multi-backend-adapter: Skip backends that failed init
company-eclim: Update to new communication protocol
company-ropemacs: describe dependencies
company-pysmell: add a note
company-etags: not always sorted
company-files: insert slash when appropriate
company-nxml: don't load nxml ourselves