Fix CSV output of matrices to be in column-major order, consistent with the header output..
added error_checks for univariate continuous distribution RNGs
added error checks for univariate/discrete RNGs
added error checks for multivariate/continuous RNGs
added multivariate/discrete error_checks for RNGs
Merge branch 'develop' into feature/fix-csv-for-matrices
fixed error in normal distr
fixed neg_binom_rng
made function names reserved names with tests and doc
Fix CSV output of matrices to be in column-major order, consistent with the header output..
Additional unit testing for CSV output of matrices.
Merge branch 'feature/fix-csv-for-matrices' of https://github.com/stan-dev/stan into feature/fix-csv-for-matrices

Conflicts:
	src/test/io/csv_writer_test.cpp
Merge pull request #183 from stan-dev/feature/fix-csv-for-matrices

Fixes #181.
Fix CSV output of matrices to be in column-major order
Merge branch 'develop' of https://github.com/stan-dev/stan into feature/parser_error_reporting
Merge pull request #194 from stan-dev/feature/fix_rng

Fixes #188.
Feature/fix rng
Merge pull request #198 from stan-dev/feature/issue-193

Feature/issue 193 (reserve function names)
Merge branch 'develop' of https://github.com/stan-dev/stan into feature/parser_error_reporting