Fixed a crash when scrolling the editor with a large body field height.

Remove shortcut Ctrl-Z from all places. It bacause Ctrl-Z in many OSes binded as Undo operation.

Added new field type unique can be used for access in postscript for read results from other queries for single run queries mode.

Added new method enableError(message) in result object.

Added new methods globals.getQueryStatus and globals.getQueryHeaders. You can use it for get info about another query with unique X.