Fix badly formatted changelog line

(Doesn't interfere with build, but lintian complains.)
Update R bindings
Add Conflicts against packages we bundle with dx-toolkit
Allow Ubuntu 14.04 dx-java-bindings to run against openjdk 7

(also cull build-depends that were only needed for EOL'd Ubuntu
releases)
Make dxpy.dxlink a no-op if given a link
Return result of execution in entry point decorator
Add bindings to project-xxxx/updateSponsorship method

Test Plan: New bindings shouldn't break old code

Reviewers: klai

Reviewed By: klai

Differential Revision: https://phabricator.dnanexus.com/D104
Add R doc file that was missing from f13c95d
Update NAMESPACE too following f13c95d
Remove obsolete Javascript bindings

Summary:
These appear to not have received any substantive updates in over 2
years, and I don't know of anyone using them.

Test Plan: Monitor all toolkit integration tests. Built Debian package by hand locally.

Reviewers: akislyuk, klai

Reviewed By: klai

Differential Revision: https://phabricator.dnanexus.com/D102
Add link to dx-javascript-toolkit
Changelog and version updates for v0.118.0