Fixing #84 showKeyInfo fails for email address only in the from field

showKeyInfo fails when the From field looks like "email@domain.com"
instead of "Full Name <email@domain.com". changed the regular expression
for extracting the address in the from field.
Alerts the user when encryption & signing is used together
Support simultaneous encryption and signing
Support simultaneous encryption and signing - fixes

indentation updated
OpenPGP.js specific code removed from rc_openpgp.js
removes encrypt&sign notice
Merge remote-tracking branch 'upstream/master'