Fix comment typo
Use qunit assertions instead of jasmine functions

in the qunit/sinonjs chapter.
Change describe/it (jasmine) to module/test (qunit)
Call expect with number inside test callbacks
Pin to qunit 1.2.0 in koans to match css

The git version (post-1.14.0) doesn't have 'expect' as a global anymore.
Merge pull request #602 from rwstauner/sinonjs-fixes

Fixes for example section in qunit/sinonjs section