MWNamespace has three internal caches, only one of which can be cleared
(and that somewhat oddly by passing a boolean to
MWNamespace::getCanonicalNamespaces()).
This change introduces a MWNamespace::clearCaches() method to clear all
three caches. It also adds some resetting in tests that seemed to be
missing it.
Change-Id: I1dcfcd8713888b3ff8fc75e95329ba72bd95d0c9
It looks like there is something missing after the last statement
Also remove some other empty lines at begin of functions, ifs or loops
while at these files
Change-Id: Ib00b5cfd31ca4dcd0c32ce33754d3c80bae70641
