Updating alpine container to include tcsh

I was able to get the alpine package maintainers to merge in a patch for tcsh that fixed the out of memory issues when attempting to use it as seen here: https://github.com/alpinelinux/aports/pull/3302. This commit has been lightly hand tested and basic tcsh features appear to work. There are some failures on alpine with the tcsh regression test suite which can be seen here: http://tpaste.us/L6R4.

Associated symlinks that replaced tcsh with bash have been removed as a result of this update.

Squashed commit of the following:

commit dc2fc6ddbb1b1815907fabbf40764884a2805761 Author: Elijah Grubb u0894728@utah.edu Date: Tue Feb 27 15:08:14 2018 -0700

Removed unnecessary symlink

commit 0d974c183f6e27a8c069221f3a898b1edf490d8f Author: Elijah Grubb u0894728@utah.edu Date: Tue Feb 27 13:54:54 2018 -0700

Readding hopefully fixed tcsh