saga: 2.1.0 - Fixed Formatting

Reordered dependencies
Indented and cleaned up patch statements
saga: 2.1.0

Fixed problem building from HEAD, the current svn build doesn't have a saga_odbc folder, so that patch isn't applied.
saga: 2.1.0 - Automated App Package Build

Automated building the .app package
Moved some of the patch files to simple wget commands
Cleaned up the caveats