- fixed the test suite: most of the TestExpressions tests were not run !!!   in fact, the first test was run over and over again, making it look like   all tests were executed and were successful. Moral of the story: do *not*   define a closure within a for loop. - added a few tests for pow - cosmetic changes
- fixed the test suite: most of the TestExpressions tests were not run !!!
  in fact, the first test was run over and over again, making it look like
  all tests were executed and were successful. Moral of the story: do *not*
  define a closure within a for loop.
- added a few tests for pow
- cosmetic changes

Alwnikrotikz/numexpr,Alwnikrotikz/numexpr,Alwnikrotikz/numexpr,tectronics/numexpr,ooguntola/numexpr,ooguntola/numexpr,tectronics/numexpr,ooguntola/numexpr,tectronics/numexpr