[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

README.md

@@ -120,7 +120,7 @@ npm install @odoo/owl
 
 If you want to use a simple `<script>` tag, the last release can be downloaded here:
 
-- [owl-1.3.2](https://github.com/odoo/owl/releases/tag/v1.3.2)
+- [owl-1.4.0](https://github.com/odoo/owl/releases/tag/v1.4.0)
 
 ## License