CBD-595, CBD-750 compile couch_icu_driver on windows with R15B02

More Info:
http://www.erlang.org/doc/man/erl_driver.html#rewrites_for_64_bits
https://github.com/apache/couchdb/commit/ef392f31c3718dc32f624d79829bb301e19113dc

Change-Id: Ic0a1ca88ca69b30714a11798ca5392b1441b91ce
Reviewed-on: http://review.couchbase.org/20971
Tested-by: Filipe David Borba Manana <fdmanana@gmail.com>
Reviewed-by: Filipe David Borba Manana <fdmanana@gmail.com>