this fixes malformed sql for getIndexInfo

sqlite stopped throwing an exception on

    pragma index_list("table");

Which was causing the sql generated by the getIndexInfo method
to be corrupt.

java.sql.SQLException: [SQLITE_ERROR] SQL error or missing database (near
"1": syntax error)
Merge pull request #8 from sjg5d8/getIndexInfo

this fixes malformed sql for getIndexInfo
Merge commit 'd41514320fb049b047a60b24a94be8401c508714' into spatialite4

Conflicts:
	src/main/java/org/spatialite4/jdbc3/JDBC3DatabaseMetaData.java