Allow setting number of threads to 0

Fixes #603

extensions/ql-vscode/CHANGELOG.md

@@ -6,6 +6,7 @@
 - Fix sorting of results. Some pages of results would have the wrong sort order and columns.
 - Remember previous sort order when reloading query results.
 - Fix proper escaping of backslashes in SARIF message strings.
+- Allow setting `codeQL.runningQueries.numberOfThreads` and `codeQL.runningTests.numberOfThreads` to 0, (which is interpreted as 'use one thread per core on the machine').
 
 ## 1.3.3 - 16 September 2020
 

extensions/ql-vscode/package.json

@@ -119,7 +119,7 @@
         "codeQL.runningQueries.numberOfThreads": {
           "type": "integer",
           "default": 1,
-          "minimum": 1,
+          "minimum": 0,
           "maximum": 1024,
           "description": "Number of threads for running queries."
         },
@@ -166,7 +166,7 @@
           "scope": "window",
           "type": "integer",
           "default": 1,
-          "minimum": 1,
+          "minimum": 0,
           "maximum": 1024,
           "description": "Number of threads for running CodeQL tests."
         }