Add --version flag, fix #92
Add --version flag, fix #92

hobarrera/vdirsyncer,tribut/vdirsyncer,mathstuf/vdirsyncer,hobarrera/vdirsyncer,mathstuf/vdirsyncer,untitaker/vdirsyncer,untitaker/vdirsyncer,credativUK/vdirsyncer,untitaker/vdirsyncer,tribut/vdirsyncer,credativUK/vdirsyncer