fixed some typos and expressions

typo fixes part II

more corrections

stupid correction of english original fixed

stays wrong but makes no sense to be fixed here

Dismiss -> Löschen

Dismiss part II

Dismiss part III

E-Mail Adresse -> E-Mail-Adresse

Teilen -> Freigabe

Teilen -> Freigabe part II

Nur Lesen

several Freigaben et al.

more teilen -> freigeben

Mitwirker -> Bearbeiter

removed female "*in"

"*in" and "*innen" is not used in German and this way more confusing than political correct

Link teilen -> Link freigeben
Merge branch 'master' of github.com:HenriWahl/seahub