Tests: WordPress Test-Libs will be stored in project

The test-libs of WordPress were stored in /tmp folder.
The test-libs are unreachable for the IDE
and are deleted after every restart.
Putting the test-libs in a local folder makes them permanent rechable.

- /vendor/wordpress-tests-lib will contain PHPUnit bootstrap for WordPress
Tests: Suite admin added

Tests did run in only one global suite.
One suite can not cover the test depending on `is_admin()`.
The admin-Suite has been added to cover `is_admin()` dependencies.

- /tests/bootstrap-admin.php sets WP_ADMIN
  and tries to set $_SERVER['PHP_SELF'] correctly
- /.travis.yml covers admin tests
- /phpunit.xml global suite will exclude admin tests
  and admin-suite has its own directory
Tests: Code will be checked by PHPMD and PHPCS

WordPress has coding standards which are tested here.
The test scripts were not tested by phpmd and phpcs.
All test scripts will be included in the conding-standards-tests.

- /.travis.yml extended to test the files
Docs: Enhanced composer file with all possible information

- Project name, description, version, license and type
- Keywords, homepage, authors and support channels
- Config to place things in a more linux directory structure
Docs: Pride of stability and testing shown in readme
Tests: Added default suite

- admin folder is excluded
Docs: Wiki added to directly change documentation
Tests: Travis does not clone sub-modules
Docs: PHPDoc used to check for missing docs

- install-date.php documentation enhanced
- /bin/parse-api-doc.sh checks for missing docs
Tests: Script that runs all tests
Tests: Pre-test if PHP-Syntax is valid

Some tests abort when the syntax is incorrect.
Checking them before the test will list the bad files.
QA: Squizlabs CodeSniffer upgraded to version 1.5

Using the latest version will provide better code quality.
QA: PHP Mess Detector upgraded to version 2.1

Using the latest version will provide better code quality.