cc enhancements
cc enhancements

- ignore forwarded otr messages
- change default otr options
- add forwarded/encrypted class to message

Zauberstuhl/jsxc,diaspora/jsxc,svbergerem/jsxc,Zauberstuhl/jsxc,pravi/jsxc,jsxc/jsxc,pravi/jsxc,jsxc/jsxc,jsxc/jsxc,diaspora/jsxc,svbergerem/jsxc,diaspora/jsxc,pravi/jsxc,Zauberstuhl/jsxc,svbergerem/jsxc