Links ViewCov._value_cache to ref_cov._value_cache

Assigns the _value_cache for ViewCoverages to the _value_cache of the underlying reference_coverage
Downgrades a some logging; skips unnecessary test

Downgrades a couple of log statements that can happen frequently and adjusts tests accordingly

Skips test_run_test_dispatcher because out-of-band writes are not allowed at this time and the test can result in failures due to HDF files that aren't closed properly or in a timely manner
Merge pull request #91 from blazetopher/tweak_tests

Downgrades a some logging; skips unnecessary test
Merge pull request #92 from blazetopher/val_cache_tweak

Links ViewCov._value_cache to ref_cov._value_cache
Fixes bugs in recovery and View

Addresses a bug with CoverageDoctor.repair when the coverage is empty

Wraps the loading of the reference_coverage in ViewCoverage to catch
a malformed reference coverage; raises an error containing the path to
the reference coverage.
Merge pull request #93 from blazetopher/fixes_recovery_bugs

Fixes bugs in recovery and View
Exclude modules from coverage
Removes numpy dependency from buildout
Updates README
Ensure ConstantValue.content returns a scalar
Merge pull request #95 from blazetopher/fix_const_bug

Ensure ConstantValue.content returns a scalar
Merge pull request #94 from lukecampbell/numpy

Removes `numpy` dependency from buildout
fix
Allows parameter_dictionary to be a string or list

Adds logic to permit the parameter_dictionary argument in the ViewCoverage constructor to be any of:

- A ParameterDictionary
- A list of parameter names
- A string indicating a single parameter name

Adds another test for ViewCoverage
Updates all submodules to latest heads
Merge pull request #97 from blazetopher/update_submods

Updates all submodules to latest heads
Merge pull request #96 from blazetopher/view_tweaks

Allows parameter_dictionary to be a string or list