[dw-free] Contextual hover menu positioning not always accurate

[fu]

[commit: http://hg.dwscoalition.org/dw-free/rev/a1a1c6af9228]

http://bugs.dwscoalition.org/show_bug.cgi?id=3684

Replace tooltip.js positioning logic with jquery.ui.position.js, to account
for the positioning not being accurate on some layouts. Also increase
z-index on contextual hover to overcome zindex in fluid measure.

Patch by fu.

Files modified:

• cgi-bin/LJ/S2/EntryPage.pm
• cgi-bin/ljlib.pl
• htdocs/js/jquery.ajaxtip.js
• htdocs/js/jquery.contextualhover.js
• htdocs/js/tooltip.dynamic.js
• htdocs/js/tooltip.dynamic.min.js
• htdocs/js/tooltip.js
• htdocs/js/tooltip.min.js
• htdocs/stc/ajaxtip.css
• htdocs/stc/contextualhover.css

( Diff: 10 files changed. )