Merge pull request #9 from gahr/master

Fix warning due to yajl_status vs. yajl_gen_status
Update README.md
Drop support for yajl version 1.  Version 2 has been out for more than 2 1/2 years.
Merge branch 'master' of github.com:flightaware/yajl-tcl

BUGZID:
Add "parse2dict" method to created yajltcl objects. Version bump to 1.5.
add tests for parse2dict
In the parse2dict method for null callbacks, append an element called "null" rather than "{}" as per github user "bovine".  parse2dict now passes all the tests.
Switch ::yajl::json2dict to internally use parse2dict method. Fixes #11
Revert "add tests for parse2dict"

This reverts commit 9d059c5f6481b22cef09c3e8d5022cfa08268c72.
increment more to version 1.5