Removed copyright

Rev: lib/modules/Cache.pmod/Data.pike:1.4
Rev: lib/modules/Cache.pmod/Policy.pmod/Base.pike:1.4
Rev: lib/modules/Cache.pmod/Policy.pmod/Multiple.pike:1.4
Rev: lib/modules/Cache.pmod/Policy.pmod/Null.pike:1.4
Rev: lib/modules/Cache.pmod/Policy.pmod/Sized.pike:1.4
Rev: lib/modules/Cache.pmod/Policy.pmod/Timed.pike:1.5
Rev: lib/modules/Cache.pmod/Storage.pmod/Base.pike:1.6
Rev: lib/modules/Cache.pmod/Storage.pmod/Gdbm.pike:1.8
Rev: lib/modules/Cache.pmod/Storage.pmod/Memory.pike:1.6
Rev: lib/modules/Cache.pmod/Storage.pmod/MySQL.pike:1.5
Rev: lib/modules/Cache.pmod/Storage.pmod/Yabu.pike:1.8
Rev: lib/modules/Cache.pmod/cache.pike:1.6
Rev: lib/modules/Protocols.pmod/XMLRPC.pmod/module.pmod:1.17
Rev: lib/modules/Sql.pmod/msql.pike:1.10
Rev: lib/modules/Sql.pmod/postgres.pike:1.16
Rev: lib/modules/Sql.pmod/sybase.pike:1.6
Rev: lib/modules/Standards.pmod/EXIF.pmod:1.6
Rev: lib/modules/Standards.pmod/ISO639_2.pmod:1.8
Rev: lib/modules/Web.pmod/Crawler.pmod:1.12