Merge branch 'hotfix/fix_user_api_calls'
[importer] Implement rake task to create importer schema for those users that don't have it
clean up
[importer] Assign cdb_importer schema using User#set_database_permissions_in_importer_schema

Conflicts:
	app/models/user.rb
	spec/models/user_spec.rb
[importer] Report progress in rake task to create the schema for the importer
Fix cherry-pick
Disabled dataimport within user relocation
[relocator] Serialize visualization for postgres before inserting
Release 2.1.2
CDB-54 #comment Stub acceptance spec for CSVs with non-comma delimiters
CDB-54 #comment Implement CsvNormalizer#encoding and CsvNormalizer#delimiter
Fixed problem loading viz stats within relocation
Fixed problem loading viz stats within relocation
CDB-96 #comment Add per-user and per-database statement_timeout values
Add timeout attributes to the superadmin API
Fix wrong require in CsvNormalizer spec
Add charlock_holmes to Gemfile. It detects file encodings to be used in the importer
CDB-134 #resolve Reintroduce database.yml.sample
CDB-54 #comment Implement CsvNormalizer#normalize
CDB-54 #resolve [importer] Normalize non-standard CSVs