* cmd/swarm: minor cli flag text adjustments
* swarm/api/http: sticky footer for swarm landing page using flex
* swarm/api/http: sticky footer for error pages and fix for multiple choices
* cmd/swarm, swarm/storage, swarm: fix mingw on windows test issues
* cmd/swarm: update description of swarm cmd
* swarm: added network ID test
* cmd/swarm: support for smoke tests on the production swarm cluster
* cmd/swarm/swarm-smoke: simplify cluster logic as per suggestion
* swarm: propagate ctx to internal apis (#754)
* swarm/metrics: collect disk measurements
* swarm/bmt: fix io.Writer interface
* Write now tolerates arbitrary variable buffers
* added variable buffer tests
* Write loop and finalise optimisation
* refactor / rename
* add tests for empty input
* swarm/pss: (UPDATE) Generic notifications package (#744)
swarm/pss: Generic package for creating pss notification svcs
* swarm: Adding context to more functions
* swarm/api: change colour of landing page in templates
* swarm/api: change landing page to react to enter keypress
- added a case error struct that contains information about certain error cases
in which we would like to output more information to the client
- added a validation method that iterates and adds the information that is
stored in the error cases
* swarm: added script to HTML header to create favicon addresses #153
* swarm: moved data blob direclty into link tag, removed script
* swarm: added favicon info to other html templates
* swarm: fixing test errors
* swarm: fixing favicon test
* swarm: fixing travis tests
* swarm: added script to HTML header to create favicon addresses #153
* swarm: moved data blob direclty into link tag, removed script
* swarm: added favicon info to other html templates
* swarm: fixing test errors
* swarm: fixing favicon test
* swarm: fixing travis tests
