#1 add javascript attribute validation

[D.H.]

only NUMBER columns
can be UNSIGNED or UNSIGNED ZEROFILL.

These changes to
admin_add_col_cols.html
and
admin_create_table_cols.html

use javascript to dynamically give/remove
the user this option
based upon the type he chooses (varchar...)

It might be a good idea to do this for the
"Extra" field as well (allowing only 1 primary_key)

Enjoy ;)

[D.H.]

patch for some templates adding javascript