* made timeit tests use native data structure or string output
* cleaned up imports
* added native data structure results to timeit ODF
* refactoring and minor fix for timeit tests
* fixed minor bug in tests.performance.timeit_tests
* updated performance test results
* major changes and refactorings to reach Python 2 as well as 3 compatibility, all doctest running through
* major
* removed distribute files
changes not mentioned on last commit:
* major refactorings to make MarkupBuilder do any XML parsing
* some improvements to doctests
* better string output performance again