Ensured proper setup of logging framework in system integration tests.
Fixed bug where test temp files were not cleaned up.
Iteration head tasks are not merged with first operator in superstep, if there is a local strategy that needs to be executed directly prior to the first superstep.
Updated Maven artifacts version to 0.2-ozone.
Allows deploying Ozone to a local repository next to a vanilla Stratosphere distribution.
fixed: ArrayIndexOutOfBoundsException when reading test input > 32KB
fixed: multiplexing deadlock
re-openable hashjoin integration test
Changed memory segment to use "unsafe" (native) memory accesses.
Mapped normalized key comparisons and record swapping in sorters to memory segment operations.
Fixed erroneous normalized key generation in PactCharacter.
Removed obsolete denormalizable key types.
Added bulk copy methods to memory segment.
Updated bulk get/put methods in memory segment in support of unified nephele/pact memory buffers.
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.