style.css - changed usfm-v and usfm-c to have the same line height.
	This is to fix the bug that sometimes chapter number overlaps
	verses on the next line.

UsfmTagDecoder
	1. Fixed bug related to add tag
	2. replace \s5 USFM tag to html <hr>

UsfmText - commented out some code related to pop up extension which is
	not available right now