Lianja 9.4.9 pre-release

I have uploaded 9.4.9 pre-release into the beta directories for those with premium support and others who have access to this.

• Enhanced COMPARE DATABASE can now generate a script that recreates a database with its tables, indexes, business rules and metadata.
  e.g. compare database southwind with dummy to file create_newdb.prg create newdb
• New LianjaScript commands:
  - RENAME TABLE table1 TO table2
  - COPY TABLE table1 TO table2 [ IF [NOT] EXISTS ]
  Note that table1 and table2 may contain databasename! so tables can be renamed or copied to different databases.
  These new commands copy/rename a table and its associated files i.e. dbf, dbt, dbx and dbd in one operation.
• Critical Fixed an issue with the LianjaScript EXECPYTHON() function which was not returning the correct value.
• New The VT property nulls=1 is equlivalent to SET NULLS ON for the Virtual Table.
• Enhanced added an extra parameter to the networkrequest::delete() method. e.g. networkrequest::delete(cUrl [,cData])
• New added a new method networkrequest::patch(). same parameters as the delete method().
• Minor UI improvements.
• Bug fixes and performance improvements