Fix for R16B's removal of paramaterized modules

Copy OTP's paramaterized module parse-transform
(https://github.com/erlang/pmod_transform) into the source tree;
add compiler pragmas to files that require parameterized modules
to use the parse-transform (sockjs_pmod_pt).

The module implementing the parse-transform has been renamed, as
per OTP's suggestion, to avoid name clashes.
start xmerl before cowboy
Merge pull request #56 from thraxil/master

start xmerl before cowboy
Merge pull request #45 from tsutsu/pmod-fix

Fix for R16B's removal of parameterized modules
update pointer to js to sockjs-0.3.4. Use proper doctype and a placeholder attr.
Merge pull request #60 from myers/update-html-to-sockjs-0.3.4

update pointer to js to sockjs-0.3.4. Also fix doctype and input