Version up 0.7

Signed-off-by: Aron Heinecke <aron.heinecke@t-online.de>

Author: 0xpr03

app/build.gradle

@@ -7,8 +7,8 @@ android {
         applicationId "vocabletrainer.heinecke.aron.vocabletrainer"
         minSdkVersion 19
         targetSdkVersion 27
-        versionCode 17
-        versionName "0.6.2"
+        versionCode 18
+        versionName "0.7"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true
     }

fastlane/metadata/android/en-US/changelogs/18.txt

@@ -12,6 +12,7 @@
 - Fixed bug were custom formats lacked any record delimiter on export
 - Fixed hint menu in training staying clickable when no hint exists
 - Fixed a bug when selecting lists and sorting
-- Fix bug with missing undo-bar & entries not getting deleted
+- Fixed bug with missing undo-bar & entries not getting deleted
+- Fixed crash with pre 0.6 lists during training
 - List editor dialog UI fix
 - Internal improvements & upgrades