Added unit-testing for logtools.parsers module
Fixed small bug in GeoIP unit-testing
Fixed small bug in logplot option parsing from configuration file
Added logplot gchart backend 'line' chart type
Improved coverage of unit-testing for the plotting module
Added support for regular expressions in bots useragents file. use r'<reg_ex>' syntax to specify a regexp line
Added --format option for logparse, added set_format to Parser interface
Added --print option to geoip utility, will print the country along with original log line