- Use class loading facilities in order to make tests work again
Revert "- Use class loading facilities in order to make tests work again"

This reverts commit 624e8a446f9e92c0f25b34ac5a62920ebe26194c.
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
- QA: Unify inline documentation
- QA: Mark "null" and "xarloader" classes as final as documented
- Use uniqid() instead of microtime for BC generics
- Use identity comparison in various places instead of equality
- Remove "static", keep xp::sapi() deprecated
# Thanks @kiesel
Merge pull request #271 from thekid/lang-base-qa

[QA] lang.base.php