Replace Travis with GitHub actions and fix many typos (#1657)

* Create django.yml

* Fix working directory

* ..

* .

* ..

* a.

* ..

* .

* Fix typo

* Install hunspell

* maxfail

* Fix install

* .

* Reduce number of typos

* Even less typos

* Postgres debug

* Spelling fixes, yet again

* Postgres with PW

* Fix failing test

* New workflows

* Fix syntax error

* Install gettext

* Test aginst python 3.6 as well

* Clean up strategies

* Add badge, do not ignore migrations

* Use pip cache

src/pretix/control/forms/event.py

@@ -396,7 +396,7 @@ class EventSettingsForm(SettingsForm):
     name_scheme = forms.ChoiceField(
         label=_("Name format"),
         help_text=_("This defines how pretix will ask for human names. Changing this after you already received "
-                    "orders might lead to unexpected behaviour when sorting or changing names."),
+                    "orders might lead to unexpected behavior when sorting or changing names."),
         required=True,
     )
     name_scheme_titles = forms.ChoiceField(

src/pretix/control/forms/orders.py

@@ -194,7 +194,7 @@ class OtherOperationsForm(forms.Form):
         initial=True,
         help_text=_(
             'If an invoice exists for this order and this operation would change its contents, the old invoice will '
-            'be cancelled and a new invoice will be issued.'
+            'be canceled and a new invoice will be issued.'
         )
     )
     notify = forms.BooleanField(

src/pretix/control/forms/organizer.py

@@ -323,7 +323,7 @@ class OrganizerSettingsForm(SettingsForm):
         ext_whitelist=(".ico", ".png", ".jpg", ".gif", ".jpeg"),
         required=False,
         help_text=_('If you provide a favicon, we will show it instead of the default pretix icon. '
-                    'We recommend a size of at least 200x200px to accomodate most devices.')
+                    'We recommend a size of at least 200x200px to accommodate most devices.')
     )
     giftcard_length = forms.IntegerField(
         label=_('Length of gift card codes'),

src/pretix/control/forms/subevents.py

@@ -254,7 +254,7 @@ class RRuleForm(forms.Form):
         widget=forms.RadioSelect
     )
     count = forms.IntegerField(
-        label=_('Number of repititions'),
+        label=_('Number of repetitions'),
         initial=10
     )
     until = forms.DateField(