Merge pull request #158 from MacroConnections/sqlalchemy-connection-p…

…ooling

Adding session teardown and changing pool size

Merge pull request #155 from MacroConnections/histograms

Histograms

Session cookie domain

Fix returning persisted correlation

Merge pull request #132 from MacroConnections/fix-field-format-change

fields: fix field format changing broken

Merge pull request #129 from MacroConnections/error-messaging

Error messaging