remove unused Apps View

BUG=
R=messick@google.com

Review URL: https://codereview.chromium.org//401203002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@38417 260f80e4-7a28-3924-810f-c04153c831b5
more progress implementing analysis server code completion
- add more properties returned by completion suggestion
- move completion suggestion into services
- move property constants into services for use by completion services
- move HasToJson into services for completion
- remove duplicate completion test

BUG=
R=scheglov@google.com

Review URL: https://codereview.chromium.org//407833002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@38418 260f80e4-7a28-3924-810f-c04153c831b5