Skip empty days
Merge pull request #1 from enplotz/empty_days

Fix for days containing no segments
Add new movement type 'run', more generic distance array init
Merge pull request #2 from enplotz/movement_type

Run movement type
Pushed to 0.1.1
Fix empty day in PlaintextExport as well
Merge pull request #3 from enplotz/plaintext

Fixes empty day error in PlaintextExport