Update Changelog

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+2012-08-21 - version 2.0
+
+This major version adds some changes not backward compatible with previous versions. Options
+-p and -g are not more used as progress bar and graphs generation are enabled by default now.
+The obsolete -l option use to specify the log file to parse has been reused to specify an
+incremental file. Outside these changes and some bug fix there's also new features:
+
+    * Using an incremental file with -l option allow to parse multiple time a single log file
+      and to "seek" at the last line parsed during the previous run. Useful if you have a log
+      rotation not sync with your pgbadger run. For exemple you can run somthing like this:
+
+       pgbadger `find /var/log/postgresql/ -name "postgresql*" -mtime -7 -type f` \
+           -o report_`date +%F`.html -l /var/run/pgbadger/last_run.log
+
+    * All queries diplayed in the HTML report are now clickable to display or hide a nice 
+      SQL query format. This is called SQL format beautifier.
+
+    * CSV log parser have been entirely rewritten to handle csv with multiline.
+
+Every one should upgrade.
+
+       - Change license from BSD like to PostgreSQL license. Request from Robert Treat.
+       - Fix wrong pointer on Connections per host menu. Reported by Jean-Paul Argudo.
+       - Small fix for sql formatting adding scrollbars. Patch by Julien Rouhaud.
+       - Add SQL format beautifier on SQL queries. When you will click on a query it
+         will be beautified. Patch by Gilles Darold
+       - The progress bar is now enabled by default, the -p option has been removed.
+         Use -q | --quiet to disable it. Patch by Gilles Darold
+       - Graphs are now generated by default for HTML output, option -g as been remove
+         and option -G added to allow disabling graph generation. Request from Julien
+         Rouhaud, patch by Gilles Darold.
+       - Remove option -g and -p to the documentation. Patch by Gilles Darold.
+       - Fix case sensitivity in command line options. Patch by Julien Rouhaud.
+       - Add -T|--title option to change report title. Patch by Yury Bushmelev.
+       - Add new option --exclude-file to exclude specific commands with regex stated
+         in a file. This is a rewrite by Gilles Darold of the neoeahit (Vipul) patch.
+       - CSV log parser have been entirely rewritten to handle csv with multiline, it
+         also adds approximative duration for csvlog. Reported by Ludhimila Kendrick,
+         patch by Gilles Darold.
+       - Alphabetical reordering of options list in method usage() and documentation.
+         Patch by Gilles Darold.
+       - Remove obsolete -l | --logfile command line option, the -l option will be reused
+         to specify an incremental file. Patch by Gilles Darold.
+       - Add -l | --last-parsed options to allow incremental run of pgbadger. Patch
+         by Gilles Darold.
+       - Replace call to timelocal_nocheck by timegm_nocheck, to convert date/time into
+         second from the epoch. This should fix timezone issue. Patch by Gilles Darold.
+       - Change regex on log parser to allow missing ending space in log_line_prefix.
+       - This seems a common mistake. Patch by Gilles Darold.
+       - print a warning when an empty log file is found. Patch by Gilles Darold.
+       - Add perltidy rc file to format pgbadger Perl code. Patch from depesz.
+
+
 2012-07-15 - version 1.2
 
 This version adds some reports and fixes a major issue in log parser. Every one