Prepare release 0.3.4

HISTORY.rst

 Release history
 ===============
 
+0.3.4 (2021-10-19)
+------------------
+
 - Update MJML to v4.10.3
 
 - Fix a libreoffice renderer bug where spaces were inserted in some place

restapi/doc.go

@@ -10,7 +10,7 @@
 //    https
 //  Host: localhost
 //  BasePath: /api
-//  Version: 0.3.3
+//  Version: 0.3.4
 //
 //  Consumes:
 //    - application/io.orus.rednerd.v1+json

restapi/embedded_spec.go

@@ -33,7 +33,7 @@
   "info": {
     "description": "The Rednerd rendering server. For a list of available rendering engines\nand their options, see \u003ca href=\"/docs/engines\"\u003eRednerd Engines\u003c/a\u003e.\n",
     "title": "Rednerd API",
-    "version": "0.3.3"
+    "version": "0.3.4"
   },
   "basePath": "/api",
   "paths": {
@@ -1086,7 +1086,7 @@
   "info": {
     "description": "The Rednerd rendering server. For a list of available rendering engines\nand their options, see \u003ca href=\"/docs/engines\"\u003eRednerd Engines\u003c/a\u003e.\n",
     "title": "Rednerd API",
-    "version": "0.3.3"
+    "version": "0.3.4"
   },
   "basePath": "/api",
   "paths": {

swagger.yaml

@@ -6,7 +6,7 @@
     and their options, see <a href="/docs/engines">Rednerd Engines</a>.
 
   title: Rednerd API
-  version: 0.3.3
+  version: 0.3.4
 consumes:
 - application/io.orus.rednerd.v1+json
 - application/json