Fix the header guards for multi_normal_prec.hpp
Merge pull request #343 from mbrubake/feature/fix-multi_normal_prec-include

Fix the header guards for multi_normal_prec.hpp
added test for bin/print that fails
fixed #342. bin/print now works on matrix outputs (again)
adding bin/print as a test dependency
Merge pull request #348 from stan-dev/feature/issue-342-print-crashes-with-matrix

Fixes #342
Merge branch 'develop' of https://github.com/stan-dev/stan into feature/parser_error_reporting