fixup! Add processor helpers

Author: jpsamaroo

Diff for: src/utils/processors.jl

@@ -1,5 +1,11 @@
 # Processor utilities
 
+"""
+    all_processors(ctx::Context=Sch.eager_context()) -> Set{Processor}
+
+Returns the set of all processors available to the scheduler, across all
+Distributed workers.
+"""
 function all_processors(ctx::Context=Sch.eager_context())
     all_procs = Set{Processor}()
     for gproc in procs(ctx)

Diff for: src/utils/scopes.jl

@@ -1,5 +1,11 @@
 # Scope-Processor helpers
 
+"""
+    compatible_processors(scope::AbstractScope, ctx::Context=Sch.eager_context()) -> Set{Processor}
+
+Returns the set of all processors (across all Distributed workers) that are
+compatible with the given scope.
+"""
 function compatible_processors(scope::AbstractScope, ctx::Context=Sch.eager_context())
     compat_procs = Set{Processor}()
     for gproc in procs(ctx)