Update brute-force targets URL to main branch

Merge pull request #90 from pinellolab/v218

Fix off-targets search processes join

fix path in crisprme.py

Merge pull request #71 from pinellolab/v216

Release v2.1.6

Merge pull request #61 from pinellolab/test-error-tracing-grep

Test error tracing grep

Merge pull request #56 from pinellolab/test-commandline

add default parameters for crisprme test functionality

Merge pull request #56 from pinellolab/test-commandline

add default parameters for crisprme test functionality

Merge pull request #47 from pinellolab/fix-onlyref-search

Fix onlyref search

Merge pull request #27 from pinellolab/trace_errors_search

Trace errors search

Merge pull request #19 from pinellolab/thread_limit_removal

Thread limit removal