Update strings.xml

Correct an english sentence
Don't use hardcoded string for ApplicationRecord

NFC is not working in the first beta because of the different package
name. Now the ApplicationRecord gets the package name with
getPackageName().
Merge pull request #141 from d-sko/nfc_fix

Fix NFC in beta
Merge pull request #140 from Kcchouette/patch-1

Update strings.xml
Change API URL to use https

The new API has SSL enabled now, so use it!
Merge pull request #142 from d-sko/ssl

Change API URL to use https
Merge remote-tracking branch 'upstream/working' into working