Use PHP_CodeCoverage package for HTML coverage report printing
Renaming 'rootpath' into 'rootPath' variable
Test suite improvements

1. moving out suite progress output to new ResultPrinter classes
2. create CliResultPrinter class to be used, when invoked from CLI
3. creating WebResultPrinter class to be used, when invoked from Web
4. send proper exit code to allow usage from Travis CI
Merge pull request #50 from php-annotations/connect-php-code-coverage

Use PHP_CodeCoverage package for HTML coverage report printing