Merge pull request #107 from jcubic/devel

Version 0.7.1
Merge pull request #109 from jcubic/devel

Version 0.7.2
Merge pull request #111 from jcubic/devel

version 0.7.3
Merge pull request #116 from jcubic/devel

version 0.7.4
Update readme
Fix flush when no outputLimit
Add option linksNoReferrer