Fixes EGI-FCTF/rOCCI-server#7

Adds location rendering to `text/plain` and `text/occi`. All
resource locations will be rendered as 'X-OCCI-Location' or
'Location' depending on the MIME type. This fixes compatibility
issues.
Fixed routing for *_tpl controllers

Dangling slashes were causing routing mistakes on *_tpl controllers.
Some requests were mistakenly routed as generic mixins, e.g.:

GET /mixin/os_tpl/debian6/  ->  MixinController

instead of

GET /mixin/os_tpl/debian6/  ->  OsTplController
Minor version bump to 1.0.1