#265: config/neuropil: better error hint for registry 500
#277: update minor version for new feature; update cortex-profile
#277: option/build: add a new private option `root-cwd` to tell cortex the origin cwd user executed command
#277: option/install: cwd will always be traversed to the repo root
#277: command/build: if server_mode is off, we will build packages into the current repo