This fixes some copy and paste errors that Coverity discovered that I introduced in the recent groups.plist merge.
Fix Coverity defects.
Fix a missing return value.
Fix more.
Merge pull request #1778 from fontforge/coverity_fixes_20141007_2

Fix Coverity defects.
Merge pull request #1777 from fontforge/coverity_fixes_20141007_1

Fix defects from the groups merge.