v1.7.0

• new: people list can be sorted by date, sum, name
• new: backup location pickable (thanks @rikhwanto)
• new: changelog shown on first launch after update (also accessible from settings)
• changed: in-app guides replaced with link to FAQ on Github
• fixed: position of date labels in edit transaction screen
• fixed: crash when entering "," in amount
• translations update
• library+gradle update