Create ZipStreamArchive

currently we only support a zip file archive. in order to allow better handling of streams, we should offer an efficient archive for zip streams.

tasks:

• remove 1.5 compatibility check from ZipArchive
• make ZipFileArchive public
• make ZipStreamArchive public, but implement proper streaming support

the zip stream archive should offer an intelligent way to retrieve the properties from either the properties.xml (or later the MANIFEST.MF) w/o copying the stream to disk first. maybe have a memory buffer of 1mb...