Change mono compile conditionalization to runtime check.
This avoids having to have different DLLs for Mono vs CLR
(cherry picked from commit 6d4e3e96c2880d14a3218503e7cb49b8ed67c77e)
Remove spurious post-build step from Clojure.Compile.csproj
(cherry picked from commit 67b77bcf4967aae484756ec0288c844747c3f4d5)
Pass PlatformSym from build.proj to Build task
(cherry picked from commit 876c8d70f408e37b5d0acbce1ce3a0f9ac77bc29)
Add clojure/edn to basic compile so ilmerge build has it available.
Lost the original fix to this because was done to the spurios PostBuild task that was just removed.
(cherry picked from commit 9add404b0ebab275f47a3879ff73c2e6e06cfd81)