fix for the issue #48: Do not allow insertion of empty messages
fix for the issue #48: Do not allow insertion of empty messages

thesobek/SpaceTalk,mauricionr/SpaceTalk,mGhassen/SpaceTalk,anjneymidha/SpaceTalk,TribeMedia/SpaceTalk,yanisIk/SpaceTalk,anjneymidha/SpaceTalk,mauricionr/SpaceTalk,SpaceTalk/SpaceTalk,syrenio/SpaceTalk,MarkBandilla/SpaceTalk,dannypaton/SpaceTalk,lhaig/SpaceTalk,TribeMedia/SpaceTalk,mGhassen/SpaceTalk,bright-sparks/SpaceTalk,bright-sparks/SpaceTalk,redanium/SpaceTalk,dannypaton/SpaceTalk,MarkBandilla/SpaceTalk,SpaceTalk/SpaceTalk,yanisIk/SpaceTalk,foysalit/SpaceTalk,lhaig/SpaceTalk,redanium/SpaceTalk,syrenio/SpaceTalk,foysalit/SpaceTalk,tamzi/SpaceTalk,tamzi/SpaceTalk,thesobek/SpaceTalk