Updated requirements.txt
Fix elements resource's 'resource_name'
Merge pull request #16 from kristallizer/api

Fix elements resource's 'resource_name'
Enable filtering on the minerals field for ChemicalAnalysis
Merge pull request #17 from kristallizer/api

Enable filtering on the minerals field for ChemicalAnalysis
Import the ApiKey class into transition1.py.
Merge pull request #18 from kristallizer/api

Import the ApiKey class into transition1.py
Merge pull request #19 from metpetdb/api

Api