update to typescript v0.8.3
update lib.d.ts;use docComments in TSSsymbol and completion
PROTOCOL CHANGE! use JSDoc support

- type command now returns object with type and docComment properties
- completions command result entries now have docComment property
- add JSDoc in tss.ts
- vim mode:
  - TSStype and CTRL-X CTRL-O show JSDoc in preview window, if known
  - TSSshowErrors opens quickfix window, if errors present
bump minor version