Continue massive-refactor with syncing commands and finishing detour:

  - [x] Detour, fix makefile deps install
        => added `make link` to link project to the GOPATH
        => allows for fully qualified "github" import paths now
  - [x] Parser always kicks out error, ugh, verify. => default behavior,
        see: [parser_private.go - Line 313](https://github.com/jessevdk/go-flags/blob/master/parser_private.go#L313)
  - [-] ~~Change singlefilemode to just filemode~~ => chose singlefilemode
        to use `-s`.
  - [~] finish filemode on all commands (build, launch, template, abstract it)
    - [x] Sync up & Refactor all commands (build should be latest)
    - [x] move ConfigFile and BuildFile types into respective locations
    - [x] Add location to ConfigFile and BuildFile for reference
    - [x] Finalize Build command
    - [x] Add check command
    - [ ] Add Images command
    - [ ] Add Launch command
    - [ ] Add Ground command
    - [ ] Add Destroy command
    - [ ] Add Version command
    - [ ] Add Template command