Merge pull request #67 from SimoneMartino98/num_precision

replaced all the array_equal with all_close to avoid numerical precision issues. Thank you @SimoneMartino98

Merge pull request #43 from matteobecchi/onion-dev

Adding the module onion.helpers  by @matteobecchi

adding onion in the docs

flippin PR to dynsight

Merge pull request #6 from andrewtarzia/use_cpctools

Bring over use_cpctools patch.

Add PR template.

Minor.