* Split tests into integration and unit tests
* Rewritten and completed unit tests
** By introducing a layer around Files.* to allow mocking of
NIO-Operations
** And introducing a factory to allow mocking of constructors
* Integration tests ignored temporarily
** TODO reduce amount of testcases and enable
* Implementation of NioFile methods
* Extracted Readable/WritableNioFile into separate classes
** Created SharedFileChannel to allow Readable/WritableNioFile for the
same NioFile to use a single, shared FileChannel
* Added tests for NioFile
* Tests for Readable/WritableNioFile pending
* Removed Readable- and WritableBytes
** Replaced with Readable-/WritableByteChannel
** Methods now integrated in Readable- and WritableFile
** Replaced positioned read/write by method to set the position
* Partial implementation of nio filesystem
* Addded some tests
* Added project for common test dependencies
* Removed default implementation of Folder#delete
** reason: didn't work because empty folders were not deleted and this
cannot be done in the default implementation
* Partial implementation of nio filesystem
* Removed timeouts from openReadable and openWritable
* Added convenience methods for copying
* Added utility to support deadlock safe opening of multiple files
