fixed language search
culture & language
fixing language search + select all languages
fixing culture trait select all
fixed overlapping text
Merge remote-tracking branch 'upstream/master' into search-functionality
removing unnecessary code
Revert "removing unnecessary code"

This reverts commit ddcc8359ce945f9bc4344cb8b69aacc174acff18.
cleaning up language search code
more cleaning up code
fixing language search
fixing language search
fixed culture search
Remove commented-out code, cleanup whitespace
Add file field to LanguageTree

Configure media storage in settings.template
Configure load.py to save tree files
Tree loading stores files and looks up by iso code
API view for getting newick string from tree

For a LanguageTree with ID 5:

GET /api/v1/newick_tree/5
Adding codebook_info field to VariableDescription
Added codebook_info field to EnvironmentalVariable