Fairly complete bigarray support.

I believe the Bigarray API is fully implemented, however, comparison is
known not to work (along with hashing/serialization I imagine).
use an enum for data_type
Naming
Merge pull request #132 from andrewray/bigarray

Fairly complete bigarray support.
Misc: git version in header
Compiler: fix bug in js_ouput
Updated CHANGES and README files
Compiler: simpl useless block (js ast)
Doc: manual for linker and options
Misc
preparing for release
start version 2.00dev
Documentation: typos
Doc: Overview
Documentation: typos
Doc: Overview
Compiler: fix assert false
Runtime: fixed float comparison (NaN was not compared correctly)
Updated CHANGES file
Updated CHANGES file