Bug in offset when parsing iso8601 date/time

[dotdoom]

There's an error in regex used to parse iso8601:

node-xmlrpc/lib/date_formatter.js

Line 32 in d9c88c4

+ '(T([0-9]{2})(((:?([0-9]{2}))?((:?([0-9]{2}))?(\.([0-9]+))?))?)'

\. is treated by JavaScript as ., resulting in "any character" match, rather than "dot".
A simple fix would be to replace \. with [.] which is agnostic of escapes. This also needs a test.