Some fault tolerance and failure recovery stuff
Don't crash if exporting wallet to existing file
Check for GUI updates every 20 minutes.
Scan a transaction when linked to it
Use a meaningful version number when reporting crashes
Update web UI. Also, load page changes in web UI via javascript rather
than reloads where possible.
Merge branch 'develop' of github.com:BitShares/qt_wallet into develop
Fix build after a certain Rajkumar removed a macro Qt Wallet uses
Merge branch 'develop'