Fix LCO Module

Fixes the LCO observation module to not require the new portal shim.

Release 0.4.0

Changes in this release:

• Addition of an ANTARES broker plugin.
• Simplification of the alert broker plugin interface
• Addition of the runbrokerquiery management command to create targets from alert brokers without human interaction
• Addition of the data_product_post_upload code hook
• New DataProcessor class that can be supplied by the user to perform custom actions on data products in the TOM Toolkit
• Improvements and bug fixes to several plugins
• Improved layout of default target detail page

Release 0.3.1

This release fixes an issue with the LCO observation submission form as a result of the roll-out of LCO's new Observation Portal.

Release 0.3.0

This release adds a few features:

• The ability to add arbitrary tags (outside of extra fields) to any target, and filter and search on them.
• The ability to associate dates with spectra.
• Some api improvements around working with extra fields.

Bug fixes:

#98 #101