Elliot/copyright 2

[elliotykim]

@optimizely/fullstack-devs

@vraja2 I found 4 files that were incorrectly added by the last copyright change commit:

• test-app/src/main/java/com/optimizely/ab/android/test_app/MainActivity.java
• test-app/src/main/java/com/optimizely/ab/android/test_app/SecondaryActivity.java
• test-app/src/main/java/com/optimizely/ab/android/test_app/SecondaryFragment.java
• test-app/src/main/res/layout/fragment_secondary.xml

This commit does not add them this time

[wangjoshuah]

do we need to change these files if we haven't touched them?

[elliotykim]

@wangjoshuah the date of the copyrights aren't changing, but rather updating the formatting (nice to have) and adding "and contributors" (necessary)

[elliotykim]

@vraja2 review por favor

[vraja2]

@elliotykim should be 2016-2017, we can add a Gradle licensing plugin like we do in Java to do a verification check with a template, but for now just add it manually. @aliabbasrizvi

[elliotykim]

@vraja2 updated the changed files with 2016-2017

[mikeproeng37]

LGTM