Parametric test for nextpow2
Tests for helper-methods
More tests
Test for reading Loc3d / PyLocator markerfiles.
Major refactorings:

 * analysis/timefreq: removed some mess, baseline can be chosen, ...
 * f32: Minor changes.
 * new class "UnlinkingTempfile": utility for examples and tests
 * Tests for F32, UnlinkingTempfile
 * Added three examples
 * Improved documentation (though still long way to go)
Removing unneeded files
Cleanup