bump version to 1.1.1

Change-Id: I780870f527614bdc687c50551e006ff3254136cf

fit for libpomelo2

upgrade to 1.0.4

upgrade to 1.0.3

upgrade to 0.6.19

fix server reconnect bug

upgrade to 1.0.1

upgrade to 1.0.0

upgrade to 1.0.0-pre

upgrade to 0.9.10