Fixes #137: Fix accessing not downloadable stylesheet.
Fixes #142: Fix ZeroDivide in table with column of width 0.
Merge remote-tracking branch 'origin/master' into bugfixes/acid-bugfixes

Conflicts:
	packages/Scamper.package/monticello.meta/version
Merge pull request #144 from SWTI2014/bugfixes/acid-bugfixes

Bugfixes/acid bugfixes