(bibtex-autokey-names): Change number tag to integer.

(bibtex-autokey-names): Change number tag to integer.

(bibtex-include-OPTkey): Add non-nil default :value
for function, so that it can be selected.
(bibtex-entry-format): Replace repeat with set.
(bibtex-mode-hook):  Change :type to 'hook.
(bibtex-clean-entry-hook): Ditto.
(bibtex-add-entry-hook): Ditto.
(bibtex-autokey-before-presentation-hook): Change name to ->
`bibtex-autokey-before-presentation-function' as it is not hook.
(bibtex-autokey-get-namefield): Remove newlines unconditionally.

(bibtex-autokey): Fixed prefix.
(bibtex-user-optional-fields): Better `:type'.
(bibtex-autokey-names): Better `:type' and doc-fix.
(bibtex-mark-active): New function, taking care of Emacs variants.
(bibtex-run-with-idle-timer): Ditto.
(bibtex-mode-map): Change `[(control tab)]' to `[(meta tab)]'.
(bibtex-autokey-get-yearfield): Changed to accept year when year
field has field-delimiters. This is quick fix, there might
be better solution.
(bibtex-mode): Don't call idle timer with 0 seconds.
(bibtex-mode): Call easy-menu-add.

(bibtex-autokey-get-yearfield): Fixed problem with
parsing the year field.

(bibtex-comment-start): Font locking for comments added.

(autokey-name-case-convert, autokey-titleword-case-convert): Replace
autokey-preserve-case, adding flexibility to case conversion of author
names and titlewords.

(bibtex-autokey-get-titles): Non capitalized title words
are used for key generation as well.
(bibtex-member-of-regexp): Case is honoured for matches now.
(bibtex-autokey-titleword-ignore): Added entries provide compatibility
to former behaviour.

(bibtex-autokey-titleword-ignore): Title words found in
this list are always ignored (previously only at the beginning of the
title).  Replaces bibtex-autokey-titleword-first-ignore.