Add ISC license

Closes #23
sync CHANGES
Release 0.9.0
Merge pull request #36 from avsm/master

Add ISC license
Fix parsing of XML/HTML tags with empty attributes.

This previously lead to a dynamic `Parsing.Parse_error`, so this
partially fixes #30 too.
Merge pull request #37 from avsm/master

Fix parsing of XML/HTML tags with empty attributes.
Cut a 0.9.1 as the empty-attribute fix is needed for Cowabloga
Merge pull request #38 from avsm/master

Cut a 0.9.1 as the empty-attribute fix is needed for Cowabloga
remove json parsing in favour of ezjsonm

still WIP
update build scripts and META
update deps in travis
include ezjsonm in json
mechanical conversions old json -> ezjsonm
put back Runtime_error exception

undoing overzealous deletion
trickier int/float stuff
Merge pull request #43 from rgrinberg/ezjsonm

Attempt at getting rid of json parsing in favour of jsonm