Update 1.8 Linux keybindings

scripts/keybindings/doc.keybindings.linux.json

@@ -133,6 +133,8 @@
                                      "when": "editorHasDocumentFormattingProvider && editorHasSelection && editorTextFocus && !editorReadonly" },
 { "key": "f12",                   "command": "editor.action.goToDeclaration",
                                      "when": "editorHasDefinitionProvider && editorTextFocus" },
+{ "key": "ctrl+c",                "command": "problems.action.copy",
+                                     "when": "problemFocus" },
 { "key": "ctrl+shift+.",          "command": "editor.action.inPlaceReplace.down",
                                      "when": "editorTextFocus && !editorReadonly" },
 { "key": "ctrl+shift+,",          "command": "editor.action.inPlaceReplace.up",
@@ -153,8 +155,6 @@
                                      "when": "editorTextFocus && !editorReadonly" },
 { "key": "ctrl+shift+enter",      "command": "editor.action.insertLineBefore",
                                      "when": "editorTextFocus && !editorReadonly" },
-{ "key": "meta+j",                "command": "editor.action.joinLines",
-                                     "when": "editorTextFocus && !editorReadonly" },
 { "key": "ctrl+shift+\\",         "command": "editor.action.jumpToBracket",
                                      "when": "editorTextFocus" },
 { "key": "f8",                    "command": "editor.action.marker.next",
@@ -203,8 +203,6 @@
                                      "when": "editorTextFocus" },
 { "key": "ctrl+h",                "command": "editor.action.startFindReplaceAction" },
 { "key": "ctrl+m",                "command": "editor.action.toggleTabFocusMode" },
-{ "key": "ctrl+c",                "command": "problems.action.copy",
-                                     "when": "problemFocus" },
 { "key": "alt+z",                 "command": "editor.action.toggleWordWrap",
                                      "when": "editorTextFocus" },
 { "key": "ctrl+shift+space",      "command": "editor.action.triggerParameterHints",
@@ -389,6 +387,7 @@
 { "key": "ctrl+k p",              "command": "workbench.action.files.copyPathOfActiveFile" },
 { "key": "ctrl+n",                "command": "workbench.action.files.newUntitledFile" },
 { "key": "ctrl+o",                "command": "workbench.action.files.openFile" },
+{ "key": "ctrl+k ctrl+o",         "command": "workbench.action.files.openFolder" },
 { "key": "ctrl+k r",              "command": "workbench.action.files.revealActiveFileInWindows" },
 { "key": "ctrl+s",                "command": "workbench.action.files.save" },
 { "key": "ctrl+alt+s",            "command": "workbench.action.files.saveAll" },