simplify google account string
update support jars
fix NPE
updating jars to 21.0.2
update appcompat project
update to latest clean appcompat
make start OTR menu the green/verified one
14.0.9 beta 1
CC0 public domain beautiful image:
Sylwia Bartyzel
https://unsplash.com/sylwiabartyzel
https://unsplash.com/license
update colors for new background image
update links in README
update to appcompat_v7 (v21.0.3)
purge OtrContants, only a single value is used (helps with otr4j merge)
purge defunct XMPP cert pin for dukgo.com, the main COMODO one covers this

It seems that the dukgo.com certificate that included this signing cert has
been replaced by one that no longer is signed by this cert.  The new one is
signed by the higher level COMODO cert that is already included:

SubjectDN: CN=COMODO RSA Certification Authority, O=COMODO CA Limited, L=Salford, ST=Greater Manchester, C=GB
IssuerDN: CN=AddTrust External CA Root, OU=AddTrust External TTP Network, O=AddTrust AB, C=SE
Fingerprint: F5AD0BCC1AD56CD150725B1C866C30AD92EF21B0
SPKI Pin: 6E584E3375BD57F6D5421B1601C2D8C0F53A9F6E