v1.0.0

SigmoidalProgramming v1.0.0

Closed issues:

• Installation Problem (#1)
• [PkgEval] SigmoidalProgramming may have a testing issue on Julia 0.3 (2015-08-12) (#3)
• Info about upcoming removal of packages in the General registry (#4)

Merged pull requests:

• add a REQUIRE file (#2) (@tkelman)
• Upgrade to julia 1.1 (#5) (@madeleineudell)
• Improve stability when solver fails (#6) (@madeleineudell)
• add init_x, catch cases with failed optimization, etc. (#8) (@yuexiao-marketingattribution)