add tablesorter v2.16.3
update tablesorter's meta data
add keywords for tablesorter
[author] Update oCanvas to 2.7.1
Merge pull request #3098 from PeterDaveHello/jquery.tablesorter_v2.16.3

add tablesorter v2.16.3
Merge pull request #3099 from PeterDaveHello/tablesorter_meta

Tablesorter meta
Merge pull request #3107 from koggdal/master

[author] Update oCanvas to 2.7.1