Release 1.1.1

The major changes of release EOP 1.1.1 compared to the previous release EOP 1.0.2 concern
a partial database migration from MySql to Redis (cf. http://redis.io/) to improve efficiency, and the substantial improvement of the EOP documentation which among others contains now an improved quick start guide, a detailed step by step tutorial, code contribution guide, global graph optimization user guide, a user guide to the Wikipedia lexical miner, a user guide to the distributional similarity package, summary and description of all integrated lexical resources and how to use them, and a uniform treatment and documentation of the EOP configuration file mechanism.