Release v2.0.0 (#531)

Author: natario1

CODE_OF_CONDUCT.md renamed to .github/CODE_OF_CONDUCT.md

@@ -0,0 +1 @@
+Contributing guidelines are [hosted here](https://natario1.github.io/CameraView/extra/contributing.html).

.github/CONTRIBUTING.md

@@ -16,7 +16,7 @@ CameraView is a well documented, high-level library that makes capturing picture
 addressing most of the common issues and needs, and still leaving you with flexibility where needed.
 
 ```groovy
-api 'com.otaliastudios:cameraview:2.0.0-rc2'
+api 'com.otaliastudios:cameraview:2.0.0'
 ```
 
 - Fast & reliable

CHANGELOG_V1.md

@@ -3,7 +3,7 @@ apply plugin: 'com.github.dcendents.android-maven'
 apply plugin: 'com.jfrog.bintray'
 
 // Required by bintray
-version = '2.0.0-rc2'
+version = '2.0.0'
 group = 'com.otaliastudios'
 
 //region android dependencies