Add profiling operators and documentation
Merge pull request #168 from bastih/feature/add_profiling_ops

Add profiling operations for easier profiling
Update developing.rst
* Adds transactional MVCC handling with TID, BeginCID, EndCID
* Adds atomic CAS for writing TIDs which work as row level lock
* Adds prettyprinter functionality for TID and CID types
* Updated Tx documentation to reflect new MVCC model
TPCC XXXS Schema + TPCC-Table-Load-Test
Merge pull request #174 from martinfaust/tpcc_load_and_test

TPCC XXXS Schema + TPCC-Table-Load-Test
Remove unused enum in Store
Store header cleanup
Move Store and TableRangeView to hyrise::storage
Reflect namespacing Store
Reflect namespacing of TableRangeView