changed model to add different kinds of availabilities. Issue #241

smash/web/models/holiday.py

 # coding=utf-8
 from django.db import models
 
+from constants import AVAILABILITY_CHOICES
 
 class Holiday(models.Model):
     class Meta:
@@ -21,6 +22,8 @@ class Holiday(models.Model):
                             verbose_name='Comments'
                             )
 
+    kind = models.CharField(max_length=1, choices=AVAILABILITY_CHOICES, default='H', help_text='Defines the kind of availability. Either Holiday or Extra Availability.')
+
     def __str__(self):
         return "%s %s" % (self.person.first_name, self.person.last_name)