Merge tag '0.0.1' into develop

Release v0.0.1
BUG: Fix Marblset repr
BUG: Fix for init MarblSets with generators
ENH: Accept any Iterable as Marbl.child_tpms
Add changelog
Bump version
Merge branch 'release/0.0.2'
Merge tag '0.0.2' into develop

Release v0.0.2
Fix code styles
Build docs on grunt docs
Implement v1.0.0 of the Marbl spec
Make requirements more flexible, bump version
Bump version
Merge branch 'release/1.0.0'