Partial commit with Netty 4.1
License
partial update path to Netty 4.1
fix fro database and http
Fix for WaarpR66 done
Fix style and issues as in 2.4.30
Fix POM
Fix Version
Fix Set and improve WriteCache
Merge pull request #11 from fredericBregier/wNetty41

Fix Set and improve WriteCache
Last fix and version
Merge pull request #12 from fredericBregier/wNetty41

Last fix and version
Fix doc
Merge pull request #14 from fredericBregier/wNetty41

Fix doc