added flattr button
fixed link
add false argument to inflate.
Merge pull request #504 from betheg/inflate

add false argument to inflate.
made muc passwords and prefereced encryption method persistant across restarts
new notification service. first draft
more improvments for new notification service
fixed muc invite with <body/>.
notifiy only when necessary
Merge pull request #505 from betheg/fix_invite

fixed muc invite with <body/>.
calculate sample size for thumbnails as well
properly dismiss notifications
show displayed by contact on all devices
avoided unecessary message searchs
mark conversation as read when displayed marker from another client is received
check if display is off for notifications
fixed possible npe
1) Renamed values-zh values-zh_rCN in accordance with #329 and Android conventions
2) Added arrays.xml translations for Simplified Chinese (zh_rCN)
3) Added translations (arrays.xml and strings.xml) for Traditional Chinese (zh_rTW)
Merge pull request #518 from isaackwan/translation_zhrCN-TW2

Chinese Translation fixes
revised tablet ui. fixed #423