FOGL-1240: first implementation of Postgres to SQLite data migration (#709)
FOGL-1240: first implementation of Postgres to SQLite data migration (#709)

* FOGL-1240: first implementation of Postgres to SQLite data migration

FOGL-1240: first implementation of Postgres to SQLite data migration

* FOGL-1240: messages updated

FOGL-1240: messages updated

* FOGL-1240: added PG_DUMP var for pg_dump

FOGL-1240: added PG_DUMP var for pg_dump

foglamp/FogLAMP,foglamp/FogLAMP,foglamp/FogLAMP,foglamp/FogLAMP