Use all libraries for docs
Using self made F# 3.1 compiler
Use FSharp.Core, Version=4.3.1.0 wherever possible
Make FSharp.Formatting happy - see https://github.com/tpetricek/FSharp.Formatting/issues/75
Merge branch 'Null' into develop
try the signed versions.
Use signed versions of FSharp.Core 4.3.1
Merge branch 'fsharp_31' into develop
Use self made version of FSI 3.1
Merge pull request #247 from fsharp/fsharp_31

Trying to build under F# 3.1