Added skipTldCheck for Domain and Hostname check
Skip Zend unit test if Zend framework is not installed
fixed domain check with skip tld checking option
added generic tlds .post and .xxx
added support for the ACE prexif ("xn--") to Domain rule for punycode encoded domain names
Update README.md

correct minor grammatical error
Merge pull request #135 from loganville/develop

Documentation grammar fix by @loganville
Merge pull request #130 from mta59066/develop

Test enhancements by @mta59066