#162050 by dvessel: user_comment() now modifies the comment, although hook_comment() was not intended to modify the comment, so we need to pass it in by reference to get modified

- Patch #163191 by hswong3i: removed db_num_rows() for compatibility with Oracle and DB2.  Also a performance improvement. (Correct version this time.)

- Patch #163191 by hswong3i: removed db_num_rows() for compatibility with Oracle and DB2.  Also a performance improvement.

#166491 by pwolanin: default theme settings page should display default theme settings, not the theme list

- Patch #166205 by hswong3i: improved database compatibility of db_result().  Makes it work with DB2, Oracle, etc.

#165766 by hswong3i: node SQL fixes - primary keys have indexes themselfs, unique columns should not allow NULL

 - centralize/reuse some node form saving code
 - fix uploads without JS
 - fix reappearing teasers on node save

#165358 by John Morahan: do not regenerate the session when the user is saved without a password specified

#85208 by neclimdul and bjaspan (slightly modified): if no maxlength was specified, do not generate an empty HTML attribute

#110511 by bjaspan: poll listing page should have a 'count_sql' because the original query uses group by, so it is not countable properly

- Patch #158537 by Benjamin Melancon and Wim Leers: unnecessary 'ORDER BY' in taxonomy_vocabulary_load.

 - always include CVS Id tags in all files
 - add a new line after the CVS Id, if more code or phpdoc follows in the same code block
 - fix bogus Id tags previously added

#165141 by hswong3i: when inserting values into VARCHAR fields, we should use quotes, even if the values are numbers

#164209 by mooffie: native language names were not shown in the predefined language dropdown for RTL languages