Update spec.json

change output contigset to required
Merge pull request #8 from levinas/patch-1

Update spec.json
Merge pull request #1 from kbase/dev

Merging my dev branch with kbase dev
Small fixes for annotate_plant_transcripts method.
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Service name was changed in "annotate_plant_transcripts" method.
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Merge pull request #10 from thebenallen/dev

Updated gapfill_a_metabolic_model & Added screenshots to build_a_metabolic_model
Output parameters marked as output for some methods.
Merge branch 'dev' of https://github.com/kbase/narrative_method_specs into dev
Fix for method name in "compare_two_proteomes" method.
Updating parameter names for metabolic model apps and methods
Resolving conflict with url key in mapping
Changing from service-mapping to script-mapping
Merge pull request #12 from samseaver/dev

Updating parameters and keys for metabolic model apps and methods
Correcting spec for build model command to permit link to NJS