Upgrade to jQuery UI 1.8.16

(In [11024]) Refs #9600: (1.0.4)

• Upgrade to jQuery UI 1.8.16.

I tested this in a Trac 0.11.7 dev environment and have it running on my Trac 0.12.2 instance. Both seem to be working well.

(In [11026]) Refs #9600: Removed the jQuery library. It is provided by Trac, so we don't want to include it again. Including a different version can result in conflicts.

(In [11242]) Refs #9600: Images needs to be located within the css directory, because they are referenced by a relative path in jquery-ui-1.8.16.custom.css.

(In [11243]) Refs #9600: jQuery UI 1.8.16 doesn't work jQuery distributed with Trac 0.11.x, so the 0.11 branch is being renamed as the 0.12 branch. A new 0.11 branch will be created at a revision prior to the jQuery UI 1.8.16 upgrade.

(In [11244]) Refs #9600: A new 0.11 branch is being created from r11023 of the old 0.11 branch (prior to the upgrade to jQuery UI 1.8.16.

(In [11245]) Refs #9600: Same as [11242], for the 0.11 branch: Images needs to be located within the css directory, because they are referenced by a relative path in jquery-ui-1.8.16.custom.css.

For both the 0.11 and 0.12 branches, setup.py needed to be modified to account for the new location of this package data.

Trying to be more careful going forward. The 0.11 branch has been tested with Trac 0.11.0 and the 0.12 branch has been tested with Trac 0.12.0.

I guess the question is now, do we really need separate 0.11 and 0.12 branches? Well, if the 0.12 branch is to use the more recent jQuery UI, then I think the answer is yes, because too much logic would be needed to select between the different jQuery components. The question then becomes, is it worthwhile to use jQuery UI 1.8.16 with Trac 0.12. I've seen a lot of jQuery UI conflicts, so without knowing any better, I'd say we are safest to try and get all of the 0.12 plugins using jQuery UI 1.8.16 (or, actually 1.8.17 is available now). I'd really appreciate getting some guidance on this though.

hasienda's recent guidance about the need to test with 0.11.0 got me thinking more about this and hopefully I'm doing the right things now to ensure a stable plugin.

My attention now is on #7617 because of the performance issue seen there. I've experiment there with no success, so I think I'll have to leave it until I know more, or someone offers guidance.

Replying to rjollos:

Trying to be more careful going forward. The 0.11 branch has been tested with Trac 0.11.0 and the 0.12 branch has been tested with Trac 0.12.0.

+1 for this approach. Definitely he way to go to make users and fellow developers happy. :-)

Replying to rjollos:

I guess the question is now, do we really need separate 0.11 and 0.12 branches? Well, if the 0.12 branch is to use the more recent jQuery UI, then I think the answer is yes, because too much logic would be needed to select between the different jQuery components. The question then becomes, is it worthwhile to use jQuery UI 1.8.16 with Trac 0.12. I've seen a lot of jQuery UI conflicts, so without knowing any better, I'd say we are safest to try and get all of the 0.12 plugins using jQuery UI 1.8.16 (or, actually 1.8.17 is available now). I'd really appreciate getting some guidance on this though.

Recent thoughts have me reversing course on this. I'm now thinking that it would be better to have one code line, even if 0.11 and 0.12 are using different versions of jQuery UI. We can select between them by importing the Trac version.

I also agree with utilizing a trunk and branches repository layout, as hasienda suggested might be the new standard repository layout for t-h.o plugins. I'm thinking that we could let the current 0.11 be the trunk, and utilize 0.12 as a development line leading to a version 2.0 of this plugin. In particular, I could push my work from #7617 into this development line.