#88264 by Rob Loach and kscheirer: Make variable_get()'s defaultparameter default to NULL so that NULLs do not need to be specified.

#364777 by Eaton, EclipseGC, JohnAlbin, and Rob_Feature: Add a 'stripped down' CSS theme to core to demo Drupal's default markup. Say hello to stark.

#242962 by Heine: Add a 'tablesort' Form API element to unify various places we use a big table with JS-enabled checkboxes next to each item (with tests).

#144969 by beginner, Wim Leers, and catch: Fix count returned by taxonomy_term_count_nodes() with multi-select vocabularies (with tests).

- Patch #351235 by dmitrig01, webchick, frando, moshe weitzman, et al: hook_page_alter.  Oh, behave.

#363262 by catch and Damien Tournoud: Replace src index on the {url_alias} table with src, language for better performance.

#362423 by chx: Include session.inc during installer to avoid fatal errors if things don't go exactly according to plan.

- Patch #334956 by JohnAlbin: remove a IE hack 'flash of unstyled content' that is no longer needed.

- Patch #80944 by Dave Reid, swentel, ChrisKennedy: move the statistics settings to a more logical place.

#306316 by beeradb: Rebuild the menu from node_types_rebuild() to assist with programmatic node creation.

#360415 by JohnAlbin: Ship Drupal with a default sites/all/modules and sites/all/themes directory. Hooraycvs diff :D

#345973 by aaron and Rob Loach: Move  parameter on drupal_add_css/js to a 'type' instead, to clean up calling code.

#352121 by valthebald and Damien Tournoud: Allow importing of invalid tags in .po files into non-default text groups.