fixes #426 expose BMC information in foreman UI

Signed-off-by: Ohad Levy <ohadlevy@gmail.com>

This patch also adds an abstracted power management class for both VM
and BM

fixes #2420 - extract strings for i18n from JavaScript, various i18n fixes

intruducing color variable and mixin in the scss files

fixes #2450 - cookie name based on pathname to be able to reuse the js in other pages

fixes #2361 do not reset password on test connection.

fixes #2361 empty password does not invalidate compute resource

fixes UI errors in trend pages

fixes #2441

new top-bar navigation design and a new login page

fixes #2360 loading parameters on host edit form when hostgroup or environment is changed