Singular.jl 0.6.0 released

Today Singular.jl 0.6.0 has been released.

Diff since v0.5.9

Closed issues:

• Constructors for CoefficientRing non-existent (#131)
• Document library caller (#152)
• Implement high level wrapper of bigintmat (#154)
• Custom orderings for polynomial rings (#273)
• Coercion from BigInt to spoly{n_Zn} broken (#326)
• ringorder_wp not defined (#431)
• functions to move from oscar/src/Rings/FunctionField.jl (#449)
• (::N_AlgExtField)(::BigInt) is broken (#456)
• Accessing a ring constructed by a function (#486)

Merged pull requests:

• add interreduce (#478) (@hannes14)
• start singular’s bigint and bigintmat (#482) (@tthsqe12)
• add lookup_library_symbol (#487) (@tthsqe12)
• dump dep versions (#488) (@tthsqe12)
• add missing FField conversions (#489) (@tthsqe12)