Store run-time property lists in scalar arrays

[petercolberg]

This stores the HDF5 property lists that are created during module initialization using a scalar array for each property, which avoids the use of hard-coded indices.

[petercolberg]

Julia nightly appears to fail on import Blosc:

Julia Version 0.4.0-dev+6531
Commit e6180f0 (2015-08-07 23:10 UTC)

ERROR: LoadError: LoadError: LoadError: LoadError: __precompile__(true) but require failed to create a precompiled cache file
 in require at ./loading.jl:211
 in include at ./boot.jl:254
 in include_from_node1 at ./loading.jl:263
 in include at ./boot.jl:254
 in include_from_node1 at ./loading.jl:263
 in include at ./boot.jl:254
 in include_from_node1 at ./loading.jl:263
 in require at ./loading.jl:202
 in include at ./boot.jl:254
 in include_from_node1 at ./loading.jl:263
 in process_options at ./client.jl:308
 in _start at ./client.jl:411
while loading /home/travis/.julia/v0.4/HDF5/src/blosc_filter.jl, in expression starting on line 1
while loading /home/travis/.julia/v0.4/HDF5/src/plain.jl, in expression starting on line 509
while loading /home/travis/.julia/v0.4/HDF5/src/HDF5.jl, in expression starting on line 1
while loading /home/travis/.julia/v0.4/HDF5/test/runtests.jl, in expression starting on line 1

[timholy]

This looks like a nice change, 👍. Once we require julia 0.4, we'll probably want to switch to a Ref.

Re the Blosc/precompilation failure: CC @stevengj. Blosc works fine for me locally. A couple of lines above that Travis error are interesting, too:

INFO: Recompiling stale cache file /home/travis/.julia/lib/v0.4/Blosc.ji for module Blosc.
WARNING: Module Compat uuid did not match cache file
ERROR: LoadError: LoadError: LoadError: LoadError: __precompile__(true) but require failed to create a precompiled cache file
...

[stevengj]

@petercolberg, that is JuliaLang/julia#12508. It will go away once a new Compat is tagged, but for now you can just quit Julia and try again and it will work the second time.

[timholy]

I just tagged a new version of Compat (JuliaLang/METADATA.jl#3042), since all HDF5/JLD PRs are failing Travis tests.

[timholy]

Thanks, @petercolberg.