Update ofxrecord amount to valid monetary numeric type

We don't want no floats around here, this is money. This stuff matters.

I also took the time to align up my comments so they are purtier

alembic/versions/eac3a08698a7_fix_currency_type.py

@@ -0,0 +1,27 @@
+"""fix currency type
+
+Revision ID: eac3a08698a7
+Revises: 00f2b77f1d2c
+Create Date: 2016-07-01 11:54:56.272364
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = 'eac3a08698a7'
+down_revision = '00f2b77f1d2c'
+branch_labels = None
+depends_on = None
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    if not op.get_context().as_sql:
+        connection = op.get_bind()
+        connection.execution_options(isolation_level='AUTOCOMMIT')
+
+    op.execute('ALTER TABLE ofxrecord ALTER COLUMN amount TYPE NUMERIC(20, 2) USING amount::numeric;')
+
+def downgrade():
+    pass