v0.3.6

Bcube v0.3.6

Diff since v0.3.5

Merged pull requests:

• Extend line mesh to arbitrary space dimension (#235) (@ghislainb)
• Add register action (#242) (@bmxam)
• Generic version for mapping_inv (#243) (@ghislainb)
• Fix AllFaceDomain (#244) (@bmxam)
• Fix differentiation of mapping_inv (generic) (#246) (@bmxam)
• Fix bilinear assembly on boundary faces (#247) (@bmxam)