copyright, licensing and changelogs of firebird2.5

 This is an (otherwise) empty package contains the copyright and licensing
 information of firebird2.5, as well as the upstream changelog.
 .
 Due to the size of the upstream change log and copyright/licensing summary,
 keeping them in a separate package saves space on mirrors and when installing
 firebird2.5 packages.
 .
 Please refer to the firebird2.5-super, firebird2.5-classic or
 firebird2.5-superclassic packages for more information about Firebird database
 in general.