Conflicting exports between StochasticOptimization.Iteration and LearnBase

[rdeits]

The Iteration sub-module exports an ObsIterator type that clashes with LearnBase. This results in the unit tests currently failing with:

julia> Pkg.test("StochasticOptimization")
INFO: Computing test dependencies for StochasticOptimization...
INFO: Installing LearningStrategies v0.0.1
INFO: Installing UnicodePlots v0.2.3
INFO: Building Rmath
INFO: Testing StochasticOptimization
WARNING: both Iteration and LearnBase export "ObsIterator"; uses of it in module StochasticOptimization must be qualified
ERROR: LoadError: LoadError: UndefVarError: ObsIterator not defined
 in include_from_node1(::String) at ./loading.jl:488 (repeats 2 times)
 in macro expansion; at ./none:2 [inlined]
 in anonymous at ./<missing>:?
 in eval(::Module, ::Any) at ./boot.jl:234
 in process_options(::Base.JLOptions) at ./client.jl:242
 in _start() at ./client.jl:321
while loading /home/rdeits/.julia/v0.5/StochasticOptimization/src/gradients/gradients.jl, in expression starting on line 24
while loading /home/rdeits/.julia/v0.5/StochasticOptimization/src/StochasticOptimization.jl, in expression starting on line 66
ERROR: LoadError: Failed to precompile StochasticOptimization to /home/rdeits/.julia/lib/v0.5/StochasticOptimization.ji.
 in compilecache(::String) at ./loading.jl:593
 in require(::Symbol) at ./loading.jl:422
 in include_from_node1(::String) at ./loading.jl:488
 in process_options(::Base.JLOptions) at ./client.jl:265
 in _start() at ./client.jl:321
while loading /home/rdeits/.julia/v0.5/StochasticOptimization/test/runtests.jl, in expression starting on line 1

[Evizero]

Oh yea. This is pre-MLDataPattern. Tom prototyped some of his data access pattern suggestions here. What needs to be done to get this running again is to switch from the custom pattern here https://github.com/JuliaML/StochasticOptimization.jl/blob/master/src/iteration.jl to MLDataPattern.

[rdeits]

Ok, thanks. I've started doing some of that work over at #15 but it's slow going.