v0.7.0

v0.7.0 (2019-06-09)

Diff since v0.6.1

Closed issues:

• Create DerivTest.jl based on Testing.jl ? (#112)

Merged pull requests:

• converting string to symbol in MOneBody (#113) (dussong)
• adding MOneBody (for multi-species). (#111) (dussong)