v0.5.0

Devito v0.5.0

Diff since v0.4.0

Merged pull requests:

• tests for localsize method (#113) (@deckerla)
• additional tests for dimension method (#114) (@deckerla)
• convert method for operator and unit tests (#115) (@deckerla)
• convert method for constants and associated unit tests (#116) (@deckerla)
• tests for non-mpi inner halo methods (#117) (@deckerla)
• setindex method (#118) (@deckerla)
• Adding SparseFunction to Devito (#120) (@deckerla)
• changing keys(x::pyobject) to propertynames(x::pyobject) (#121) (@deckerla)
• changing keys to propertynames in dimension method (#122) (@deckerla)
• reverse tuple arguments in Function, TimeFunction, and SparseTimeFunction construction (#123) (@deckerla)