Whitespace
Add base command class with basic logging config
Use base command class in restoredb
Rewrite streams module to avoid re-implementing python logging
Update base logging format
Whitespace
Use python standard logging in backupdb and restoredb commands
Use python standard logging in processes module
Fix problem with missing section bars
Change default section bar width
Rename streams module to something more appropriate
Rename streams_tests.py -> log_tests.py
Replace toplevel logger by the module name logger
Merge branch 'logging-fixes'

Merge #4