FIX for issue 958, change single quote to double so that removing works
FIX for issue 619, fixed sorting on columns that contain html
Fix; creates grace period and penalty objects at proper time
Add check for invalid date format
Merge pull request #964 from akwok18/issue-619

FIX for issue 619, fixed sorting on columns that contain html
Merge pull request #975 from yc2lee/issue-958

Issue 958