Improved the 'Test Configuration' feature in the pipeline editor to have more thorough checks for input file existence and read access.
Merge pull request #300 from sgiavasis/0.3.4_development

0.3.4 development updates
Merge branch '0.3.4_development' of https://github.com/dclark87/C-PAC into dcDev
Merge pull request #2 from FCP-INDI/0.3.4_development

0.3.4 development