Virta 0.9.2

Virta 0.9.2

Compation package for Muste making direct SQL-queries to SVO-files possible.

Changes include:
- Support for several semicolon separated queries with one FILE SQL command, results from the last one are saved to given .SVO-file
- Subquery can be commented out using # as a first character for (sub)query
- Significant speed-up for queries by copying virtual tables  to native SQLite tables