Merge "Alembic: Add PJSIP global keep_alive_interval."

contrib/ast-db-manage/config/versions/189a235b3fd7_add_keep_alive_interval.py

+"""add_keep_alive_interval
+
+Revision ID: 189a235b3fd7
+Revises: 28ce1e718f05
+Create Date: 2015-12-16 11:23:16.994523
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '189a235b3fd7'
+down_revision = '339a3bdf53fc'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.add_column('ps_globals', sa.Column('keep_alive_interval', sa.Integer))
+
+
+def downgrade():
+    op.drop_column('ps_globals', 'keep_alive_interval')