Bugfixs/3523 newpr

[eitzenbe]

redone the previous branch, now consisting of the following changes:

1. added escapeHtmlTags to Formatter which is used in breadcrumbs to escape example parameters used in scenario titles (especially the < and > characters

Scenario Outline: This is a dummy title for

would as of now end up in breadcrumbs as "This is a dummy title for"

2. using <#outputFormat 'HTML'> on some locations in the ftl files where such a title would cause a misformatting or "sucking" the param string. Also in the tables showing the example values if one of the values itself would be an html tag like for example:
   Examples:
   | value|
   |red|
   ||

would yield a table with no visible value in the second row

lastly the test code uses hamcrest for checking if file exists by checking if exists returns true, whereas hamcrest suggest to use the anExistingFile() method approach