(bug 36537) Rename calls to wfArrayToCGI to wfArrayToCgi

Done with this command:
grep wfArrayToCGI * -R -l -Z | xargs -0 -l sed -i -e 's/wfArrayToCGI/wfArrayToCgi/g' && git checkout -- HISTORY

Change-Id: If7f4d4bfc199289c11c43cf519c2415a1aad1c51
Merge "(bug 36537) Rename calls to wfArrayToCGI to wfArrayToCgi"