basic debug tabs added to Views pages. needs work to consider Views arguments. also needs port to D6 once Views for D6 becomes public.

#110407 add uninstall step to reinstall feature. beware, this reinstall will now delete all module data first. i added a warning to this effect.

add function and link for rebuilding node_comment_statistics table using pure SQL. also some other migration related helper functions.

moving hook_disable to be in the same location as HEAD -- we might as well keep these files in sync as much as possible.

move a brace down in devel_shutdown() so the ['devel_shutdown'] marker actually does soemthing. thanks Earl.

i picked wrong solution for #140417 - avoid breaking javascript/image pages with devel_shutdown() output

- Code didn't correctly handle sites where the 'Switch users'
  permission has been granted to the 'authenticated users' role.
- Queries didn't properly filter out uid 0.
- Queries were not PgSQL compliant.

should prefer to list users that are allowed to switch, and visually
mark them (via theme('placeholder')) so you know who can switch back.

some minor bugs (missing table prefixing, for() off-by-1 error,
missing format_plural(), unnecessary update to {sequences}, etc).

once again, the query log and friends are compatible with page cache. we even output a query log even if a cached page was served. useful for assuring you are fully optimized for cached pages. no longer using javascript to output the query log ... AHAH and other pages can use ['devel_shutdown'] = FALSE to suppress devel output