Synnefo

quotaholder: Revert migration of log timestamps

Because migrating the timestamp fields of model ProvisionLog from string
to datetime takes too long, we keep them in string format.

Alter migrations 0005 through 0007 introduced in commit 164e64d.

snf_django: Optionally use other default serialization than json

Pithos api default serialization for listing is text insted of json.
However the common api decorator if not specified otherwise used to
json as the default serialization.
So we introduced a new optional argument (defaults to json) to override...

astakos: Generate tokens without trailing equal signs

Strip padding ("=") introduced during the base64 encoding.
Update token examples in docs.

docs: Update install guide

Update URLs according to the new scheme.
  Remove note on CSRF deactivation.
  Mention PITHOS_BASE_URL and CYCLADES_SERVICE_TOKEN.
  Update output of pithos-migrate.
  Remove VMAPI_BASE_URL.

Merge branch 'feature-api-csrf-exempt' into develop