[DOC] Enhance TypoLink ViewHelper Documentation

Made it clear how a simple link could look like and referenced core docs
Merge pull request #470 from cedricziel/typolinkDocFix

[DOC] Enhance TypoLink ViewHelper Documentation
[BUGFIX] Prevent infinite loop
Merge pull request #472 from bjo3rnf/forawhile

[BUGFIX] Prevent infinite loop
[TASK] Correct URLs to Introduction and phpunit in Travis config