Add ServletConfiguration in a move to support multiple servlets in the same container.
Add initial support for multiple servlets.
Add unit tests around building more than one ServletConfig and/or
FeatherCon server with the same builder.
Use JUnit lifecycle method @Before to setup builder instances.
Move default port definition up into FeatherCon.
Add default servlet test.
Add static content into VCS for test purposes.
Unit test consumption of REST service and static content.
Use appropriate Markdown in Gradle Wrapper hyperlink.
Improve README.
More unit tests.
Remove immutability of servlet context attributes on server.
More unit testing.
Bump latest version in README.
Move static web content test data to src/test/resources/
Apply bintray credential from file $HOME/.gradle/bintray.gradle to
avoid accidentally adding the old location in <project-root> to the
repository.

Remove the .gitignore that held the reference to old location
<project-root>/bintray.gradle.
Check for existence of bintray.gradle in $HOME/.gradle/ before attempting to read it.