Fix config and start scripts to work on Windows/cygwin

Also fix WebInterfaceServer.java to properly check whether path
is absolute on Windows.

Default directory entries in nephele-user.xml and pact-user.xml
are now commented out because java code will load proper default.
Adjusted cygwin path conversion for path lists.
Backported ID Methods from 0.2.1
Generified binary and sequential i/o formats
Generalized methods in format utils
Fixed incorrect handling of generic formats in data sink tasks
Fixed local instance manager live lock during shutdown
Generified generic data sink ctor
Fixed generics in FormatUtil
Decreased waiting times in IPC Client to speed up LocalExecutor
Made PactString appendable