Add missing .sh in ./testMetrics.sh clean
Merge pull request #11 from joekain/patch-1

Add missing .sh in ./testMetrics.sh clean
Merge from lqi/master
fixed some typos
Some more edits (wording etc.)
Added docu for the „covered switch“ merge.
Merge branch 'se_edits' of https://github.com/maplesteve/oclint-docs into maplesteve-se_edits