Travis builds fail with Vicare

[eholk]

It should be a pretty simple update to the install script for vicare.

Here's an example of a failed build: https://travis-ci.org/eholk/harlan/jobs/81973537

For now I'm going to disable automated Vicare testing so I can focus on other things.

[svenha]

I asked Marco (Vicare coauthor); here is his answer:
The problem is described by this line:
383 configure.ac:13: require Automake 1.14, but have 1.11.3
to fix it the build script must be instructed to install a recent Automake release.

[marcomaggi]

@eholk, rather than checking out from the repository you should consider downloading a release tarball from https://bitbucket.org/marcomaggi/vicare-scheme/downloads. The implementation of the standard language should be pretty stable.