EMA

* adds Ema model (basically Compensation inherited)
* adds index view for EMAs
* fixes drop-down link bug for menu 'More' in navbar
* refactors some more forms to use process_request()
* adds modified attribute to BaseResource for easy last_modified check
* adds setting of modified attribute in all places where UserAction.EDITED is added to log
* adds EMA_ACCOUNT_IDENTIFIER_LENGTH and EMA_ACCOUNT_IDENTIFIER_TEMPLATE to ema/settings.py
* adds EmaAdmin to ema/admin.py
* fixes wrong title in intervention detail view html for revocations
* adds support for subtitle variable to BaseTable and generic_index.html
* drops next_version attribute from models
* adds/updates translations
* adds default ordering for UserActionLogEntry
   * removes extra ordering in log modal rendering

ema/views.py

@@ -0,0 +1,70 @@
+from django.contrib.auth.decorators import login_required
+from django.http import HttpRequest
+from django.shortcuts import render, get_object_or_404
+
+from ema.tables import EmaTable
+from konova.contexts import BaseContext
+from konova.decorators import conservation_office_group_required
+from ema.models import Ema
+
+
+@login_required
+def index_view(request: HttpRequest):
+    """ Renders the index view for MAEs
+
+    Args:
+        request (HttpRequest): The incoming request
+
+    Returns:
+
+    """
+    template = "generic_index.html"
+    emas = Ema.objects.filter(
+        deleted=None,
+    ).order_by(
+        "-modified"
+    )
+    table = EmaTable(
+        request,
+        queryset=emas
+    )
+    context = {
+        "table": table,
+    }
+    context = BaseContext(request, context).context
+    return render(request, template, context)
+
+
+@login_required
+@conservation_office_group_required
+def new_view(request: HttpRequest):
+    """ Renders the form for a new MAE
+
+    Args:
+        request (HttpRequest): The incoming request
+
+    Returns:
+
+    """
+    template = "generic_index.html"
+    context = {}
+    context = BaseContext(request, context).context
+    return render(request, template, context)
+
+
+@login_required
+def open_view(request: HttpRequest, id: str):
+    """ Renders the form for a new MAE
+
+    Args:
+        request (HttpRequest): The incoming request
+        id (str): The MAE id
+
+    Returns:
+
+    """
+    ema = get_object_or_404(Ema, id=id)
+    template = "generic_index.html"
+    context = {}
+    context = BaseContext(request, context).context
+    return render(request, template, context)