Add some more tests to confidentialstringTest.php
A little bit of style
Remove possibly undefined variable.
The inner format does not matter - let's serialize the string, it will be restored correctly.
Removed call to confidentialString - self-modifying test code is really hard, and the values are no secret.
Rewritten most tests for ease of use and clarity.
Update return typehint
Refactored the tests.
Remove unused variable.
Fix dataprovider
Put the BasicPasswordManagementTest.php in separate file.
Suggest using regex for finding doubled words.
tested libraries in windows and changed code accordingly
Merge pull request #54 from SvenRtbg/travis

Integrate continous integration with Travis CI
solved issue 56 and made a config file for project
ran scans on the project and replaced echo with echof