README.md & Travis cleanup

Remove the IRC notifications from Travis (we're not using IRC anymore), and the
stable/experimental badge from README.md (because they aren't being kept up to date).

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

.travis.yml

@@ -7,13 +7,6 @@ install:
 script:
   - make travis-test BOARD_HARDWARE_PATH=$(pwd)/hardware
 notifications:
-  irc:
-    channels:
-      - "chat.freenode.net#keyboardio"
-    use_notice: true
-    skip_join: true
-    template:
-      - "%{repository_name}/%{branch} %{commit} by %{author}: %{commit_subject} %{build_url} %{message}"
   email:
     on_success: change
     on_failure: change

README.md

@@ -1,14 +1,10 @@
 # Kaleidoscope-ShapeShifter
 
-![status][st:stable] [![Build Status][travis:image]][travis:status]
+[![Build Status][travis:image]][travis:status]
 
  [travis:image]: https://travis-ci.org/keyboardio/Kaleidoscope-ShapeShifter.svg?branch=master
  [travis:status]: https://travis-ci.org/keyboardio/Kaleidoscope-ShapeShifter
 
- [st:stable]: https://img.shields.io/badge/stable-✔-black.svg?style=flat&colorA=44cc11&colorB=494e52
- [st:broken]: https://img.shields.io/badge/broken-X-black.svg?style=flat&colorA=e05d44&colorB=494e52
- [st:experimental]: https://img.shields.io/badge/experimental----black.svg?style=flat&colorA=dfb317&colorB=494e52
-
 `ShapeShifter` is a plugin that makes it considerably easier to change what
 symbol is input when a key is pressed together with `Shift`. If one wants to
 rearrange the symbols on the number row for example, without modifying the