Initial implementation
Also accept file descriptors in Channel* streams
Deparent io.File, deprecate io.Stream
Make "fd" member protected
Fix "Use of undefined constant STREAM_MODE_READ"
Create net.xp_framework.unittest.io.Buffer, an io.File lookalike
Migrate away from buffer class to a combination of File & Streams
Handle already opened files in io.FileUtil
Close files before reading from them
Coding standards adjustments
Handle already opened files in lang.archive.Archive
Handle already opened files in lang.archive.Archive
Use io.File class instead of Buffer lookalike
Rewrite setContents() test
Remove Buffer class, replaced by Streams/File/Memory[In|Out]putStreams combinations
Merge pull request #40 from thekid/rfc/0289

`Stream` class deprecation, introduce `Channel`
Implement xp-framework/rfc#289 with PR #40