Several bugs solved:
   - Cow age and date of birth not compared during cow registration
   - During cow registration, validation done such that either age
     or date of birth has to be entered
   - Data from edit texts now only chached if the activity is paused
     by mistake/not by the user
Several bugs solved:
       - Cow age and date of birth not compared during cow registration
       - During cow registration, validation done such that either age
         or date of birth has to be entered
       - Data from edit texts now only chached if the activity is paused
         by mistake/not by the user
Version 0.8.21
Solved the bug were the scrollviews for breeds and deformities
in some android versions were not scrolling