[REL] v1.4.0

# v1.4.0

This release is larger than usual: lot of small fixes, and a few improvements as
well.

- config: change debug mode warning to info
- fix: add support for callable expression in event handler (for example, `t-on-click="some.function"`)
- fix: allow specific props to override generic props (in `t-props`)
- fix: add support for short object description in inline expressions: `{ hey }`
- fix: add support for t-att-value on `<textarea/>` and `<select/>`
- fix: slots: issue with scoping in nested loops
- fix: slots: default slot is not lost in some cases
- fix: do not shadow an error in case the finalizing code fails
- imp: qweb: allow multiple class in class attribute object notation: `t-att-class="{'a b': value}"`
- imp: better detection for dynamic component change (less need for `t-key`)
- fix: router: allow querystrings in path
- fix: qweb: add support for template strings
- fix: qweb: make sure nodes with t-transition are removed in all cases

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@odoo/owl",
-  "version": "1.3.2",
+  "version": "1.4.0",
   "description": "Odoo Web Library (OWL)",
   "main": "dist/owl.cjs.js",
   "browser": "dist/owl.iife.js",