* Updates to config handling
- Add functions to load in configs
- Standardize location and naming of config files
- Configuration over convention style of config file handling for each
service
* update config handling and correclty handle cli flags being set
* generate configs from default if no config is found
- renamed pointerdbDB to pointerdb for clarity in config file
- set sane default for pkg/overlay boltDB file
- set srvPort to default to 8082 to avoid port collision on default
setting
* linter updates
* move boltdb path vars into function
* update tests to handle config environment changes
* --fix exec test mocks
* update tests to use viper instead of flag library
* fix typo
* add redis-server to services in travis for tests
* update examples with new config env function signature
* fix tests
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