Memory Error on CRAN checks about lhs

[bertcarnell]

Replicated error on Ubuntu with

R -d valgrind -e 'devtools::run_examples()' > valgrind.out.txt 2>&1

and

R -d valgrind -e 'devtools::load_all("."); oa <- lhs::createBose(3, 4, TRUE); lhs::oa_to_oalhs(9, 4, oa, TRUE)'

[bertcarnell]

Resolved the error in two ways:

1. change bclib::matrix::toString to return a std::string
2. change all printf and Rprintf to use std::cout and Rcpp::Rcout
3. remove the ability of users to use verbose from the R API

This command passed with only errors on "Conditional jump or move depends on uninitialised value(s)"

R -d valgrind -e 'devtools::run_examples()' > valgrind.out.txt 2>&1

This one also passed with the edit that the verbose option is removed

R -d valgrind -e 'devtools::load_all("."); oa <- lhs::createBose(3, 4, TRUE); lhs::oa_to_oalhs(9, 4, oa)'

R CMD check --as-cran passed on Windows in RStudio
R CMD check passed on Ubuntu with a clean source package
R CMD check --as-cran --use-valgrind passed on Ubuntu with a clean source package

checked on rev b79e3ce

[bertcarnell]

submitted to CRAN for rev ccee05c