Some new stuff for budget management. [skip ci]

app/config/firefly.php

@@ -0,0 +1,39 @@
+<?php
+return [
+    'index_periods'          => '1D', '1W', '1M', '3M', '6M', 'custom',
+    'budget_periods'         => 'daily', 'weekly', 'monthly', 'quarterly', 'half-year', 'yearly',
+    'periods_to_text'        => [
+        'weekly'    => 'A week',
+        'monthly'   => 'A month',
+        'quarterly' => 'A quarter',
+        'half-year' => 'Six months',
+        'yearly'    => 'A year',
+    ],
+    'range_to_text'          => [
+        '1D'     => 'day',
+        '1W'     => 'week',
+        '1M'     => 'month',
+        '3M'     => 'three months',
+        '6M'     => 'half year',
+        'custom' => '(custom)'
+    ],
+    'range_to_repeat_freq'   => [
+        '1D'     => 'weekly',
+        '1W'     => 'weekly',
+        '1M'     => 'monthly',
+        '3M'     => 'quarterly',
+        '6M'     => 'half-year',
+        'custom' => 'monthly'
+    ],
+
+    'date_formats_by_period' => [
+        'monthly' => [
+            'group_date'   => 'Y-m',
+            'display_date' => 'F Y'
+        ],
+        'weekly'  => [
+            'group_date'   => 'Y-W',
+            'display_date' => '\W\e\e\k W, Y'
+        ]
+    ]
+];