added excepthook

Signed-off-by: Guyzmo <guyzmo+github@m0g.net>
added insert timer (needs improvement) ; added support of authors' color displaying or not ; added insert mode handling

Signed-off-by: Guyzmo <guyzmo+github@m0g.net>
Merge branch 'master' of github.com:guyzmo/vim-etherpad
added disconnect ; updated error messages ; added epad hook reset

Signed-off-by: Guyzmo <guyzmo+github@m0g.net>