(bibtex-autokey-transcriptions): Translate TeX `\ ' to space.
(bibtex-reference-keys): Distinguish between header keys and crossref keys.
(bibtex-beginning-of-field): New function.
(bibtex-url-map): Remove.
(bibtex-font-lock-keywords): Use bibtex-font-lock-crossref.
(bibtex-font-lock-url-regexp): Assume that field names begin at
the beginning of a line.
(bibtex-font-lock-url): Simplify. Do not use bibtex-enclosing-field.
Remove field delimiters. Bugfix, point can be inside a field with a url.
Use bibtex-beginning-of-field.
(bibtex-font-lock-crossref, bibtex-button-action, bibtex-button): New funs.
(bibtex-mark-active, bibtex-run-with-idle-timer): Remove.
(bibtex-key-in-head): Simplify.
(bibtex-current-line): Use bolp.
(bibtex-parse-keys): Remove unused arg `add'.
Use bibtex-type-in-head and bibtex-key-in-head.
(bibtex-parse-entry, bibtex-autofill-entry):
Use bibtex-type-in-head and bibtex-key-in-head.
(bibtex-autokey-get-field): Do not alter case of replacement text.
(bibtex-autokey-get-names): Do all processing of name list.
(bibtex-autokey-get-year): New function.
(bibtex-autokey-get-title): Do all processing of title words.
(bibtex-generate-autokey): Simplify.
(bibtex-string-files-init): Use default-directory.
Allow for absolute file names in bibtex-string-files.
(bibtex-files, bibtex-file-path): New variables.
(bibtex-files-expand): New function.
(bibtex-find-entry-globally): New command.
(bibtex-summary-function): New variable.
(bibtex-summary): Default value of bibtex-summary-function.
(bibtex-find-crossref): New optional args pnt and split.
(bibtex-complete-key-cleanup): Call bibtex-summary-function.
(bibtex-copy-summary-as-kill): New command bound to C-cC-t.
(bibtex-validate): Fix docstring. Check only abbreviated month fields.
Fix handling of required and alternative fields.
Identify duplicate keys even if bibtex-maintain-sorted-entries is nil.
Use cons and display-buffer.
(bibtex-validate-globally): New command.
(bibtex-clean-entry): Use bibtex-files-expand. Do not call
bibtex-parse-keys and bibtex-parse-strings for updating
bibtex-reference-keys and bibtex-strings.
(bibtex-realign): Remove blank lines past the last entry.
(bibtex-reformat): Use bibtex-entry-format as default.
(bibtex-choose-completion-string): Remove.
(bibtex-complete): Do not use bibtex-choose-completion-string.
(bibtex-url): Simplify.
