* (refactor) change all sql references of user_password to username_password
* refactor(pkg) renamed pkg userpassword to usernamepassword
* refactor(proto) updated protocol buffers to use UsernamePassword
* refactor(code) updated references from UserPassword to UsernamePassword in golang files
* refactor(test) updated unit tests to reference UsernamePassword changes
* refactor(ddtest) updated references in dbtests to use UsernamePassword
* chore(sql-test) fixed spelling issue
* chore(sql) added and updated comments in migartion & tables. fixed indentations
* chore(proto) updated comments to reflect username_password changes
* refactor(tests) updated unit tests to replace user-password with username-password
* refactor(cmd) updated cmd help text to use username
* chore(tests) update test name & comments
* fix(cmd) fixed cmd usage definition for credentials update
* refactor(tests) removed out of scope changes
* fix(sql) incremented sql migration id & updated migration comments
* Move the server daemons into their own package
With this change the internal/server package now is dedicated to the server domain (workers and controllers) and not to the server daemons.
The hope is that this will make it easier to keep the daemons decoupled from the representation of the servers in the database.
Louis Ruch
Damian Debkowski
Todd