This CR tracks several needed improvement areas for npDeployHelper:

1) Revamp compareVersion() to take care of other syntactic inputs. Should throw JS error for:
'n1.n2.n3.n4" or "n1.n2_n3_n4" or "n1_n2.n3"

2) Revamp <Deploy>.browserJVM
For Firefox, should inspect "BrowserCurrentVersion" key or fall back to latest version installed.
For Mozilla, beside checking the "CurrentVersion" key, also need to check the <browser>/plugins/ for the NPOJI plugin lib file's "Full Version".

3) Add <Deploy>.version property
###@###.### 2005-04-09 01:10:09 GMT