Activate docker based infrastructure on Travis CI
added changelog.txt for 1.3.2
1.3.2 beta 1 release
Merge pull request #4041 from 0x1mason/master

1.3.2-Beta
Merge pull request #4018 from bootstraponline/master

Activate docker based infrastructure on Travis CI
Use linux nodes for docker
Merge pull request #4046 from bootstraponline/master

Use linux nodes for docker
app activity/app package documentation