(ada-ident-re): Doc fix.

(ada-ident-re): Doc fix.
(ada-end-stmt-re): Corrected serious pb of wrong parentheses.
(ada-subprog-start-re): Removed 'body' from the list.
(ada-format-paramlist): Simplified a regexp.
(ada-indent-current): On first line of the buffer, indent to column 0.
Don't reindent if new position is the same as the old one.  Thus, a
correcly indended line is not modified.
(ada-get-indent-subprog): Simplified a regexp.
(ada-goto-matching-decl-start): Distinguish between normal type
declaration and protected types, which are more like procedures.
(ada-remove-trailing-spaces): Use save-match-data, save-restriction
and widen when removing whitespace.
(ada-font-lock-keywords-1): Add 'pragma' as keyword.
(ada-font-lock-keywords-2): Allow *qualified* idents after 'end'.