Merge pull request #9 from bretttolbert/master

fixed default password, added unit test test suite
Merge pull request #10 from bretttolbert/master

added port to url, expanded unit tests, fixed getElementsByTageName typo, added get device info and get network info
Merge pull request #11 from bretttolbert/master

added additional keywords, comments, unit tests
Merge remote-tracking branch 'upstream/master'
fix bug: should be if calling_party == callerid