Adds .json suffix to each route

This fixes an issue where clients were expecting most (all?) routes to
be able to have a .json suffix.
Removes .json suffix from networks/subnets routes
Fixes test and removes some un-used imports
Merge pull request #74 from sudorandom/json-extention

Adds .json suffix to each route
Retrieved associated endpoints with given token

Handling Identity endpoint-list using specified token #58
According to Identity API Specification [1], endpoints should be returned with following request:
GET v2.0/tokens/{tokenId}/endpoints
[1]http://api.openstack.org/api-ref-identity.html#identity-v2
support for default domain in jumpgate.conf

adds support for the specification of the default domain to use when
booting servers in the conf file rather than hardcoding it to
'jumpgate.com' in the py code. this is a partial implementation of
https://github.com/softlayer/jumpgate/issues/63 which allows
configurable domain per jumpgate service. a future PR will include
additional support such as that discussed in
https://github.com/softlayer/jumpgate/issues/63
Merge pull request #78 from anil-kumbhar/token-get-endpoints

Retrieved associated endpoints with given token
Addresses \#6: Swift location import supported

When Swift direct-url with account name, container and object name is
given that is used to import image template using
SoftLayer_Virtual_Guest_Block_Device_Template_Group service.
Removed duplication among schema by reusing `member` and `image` schema inside `memebers` and `images`
Merge pull request #79 from bodenr/bodenr/domain-name

support for default domain in jumpgate.conf
Merge pull request #66 from amol/image-import

Addresses #6: Swift location import supported
A temp fix for softlayer-python < 3.1.0
Merge pull request #83 from sudorandom/proxy-temp-fix

A temp fix proxy option