v0.3 (06/02/2016)
** User **
	Add referers_diff display plugin
	Add year statistics in month details
	Add analysis duration
	Add browsers detection
	Add operating systems detection
	Add track users plugin
	Add feeds plugin
	Add _append feature to conf.py
	Add hours_stats plugin
	Add display/top_downloads_diff plugin
	Can specify multiple files to analyze
	Add reset feature
	Add gz files support
	Add -z option (don't compress databases)
	Add own search enfines files
	Do reverse DNS on feeds parsers
	Add IPToGeo plugin

** Dev **
	Add istats_diff interface
	Sort documentation output
	Add debug traces in robots plugin
	Update awstats data
	Remove doule // at the end of URL
	Remove final slashes for referrers

** Bugs **
	Forgot <body> tag
	Bad UTC time computation
	Hits/pages in the same second where not analyzed
	Last day of month was skipped