Enabling this option will log traceback from exception.

 - Changed most variables from hard-coded export's, so that they only use their default value if
   the variable wasn't already set in the environment

 - Refactored most lines to follow shellscript standards, e.g. using `${}` where appropriate, quoting
   arguments and variables, etc.

 - Added some additional variables to make it easier to adjust individual portions of the docker tag
   through environment variables

 - Added basic information comment block to the top of the file explaining how to use the build script,
   and how to adjust the docker tag

 - Added a bash shebang and made the file executable

 - Added support for overriding the docker tag by passing an argument

 - Added `$DIR` variable, allowing `build.sh` to be ran from any working directory, without running
   into path context problems.

Fix build

See merge request !2

Community - adjust custom_json validator

update definition of invalid_broadcast_transaction for passing tests that should be failing in order to pass ;)

Example config file for using hivemind as a tags/follows replacement

Regex match on /proposals to route to steemd

Dont cache irreversible blocks forever

Fix ports in docker command

Ports should be 8080:8080, not 9000:9000

Fixes bug in which you cannot specify a port in the upstream config file

Maintenance updates

route get_state witnesses

Steemit/lock pipfile stable

Fix get_ops_in_block timeout issue

Closes #213 get_ops_in_block timeout

Enforce http json serialization

Rework timeout handling