info() will return more information.

Remove version() that info() will return the version info also.
Merge remote-tracking branch 'origin/master' into dev
Add Charset support
version 0.8.1
Merge remote-tracking branch 'origin/master' into dev
Update file size
Fix conflict
Merge remote-tracking branch 'origin/master' into dev
[develop] Medoo 0.8.6

1. Improve support for JOIN
2. Format last_query output
[develop] Fix #25 Condition with date
[develop] Fix #26 Exception for connection failure
[develop] Fix bug & disquote for integer variable
[develop] Fix #29 bug (?) in function get
[develop] Better data type support for insert and update, and better query string format
[develop] Fix #27 Add support for port connection
[develop] Update configuration order
[develop] Fix #35 MySQL keywords that are not in quotes
[develop] Fix table joining bug
[develop] Fix #35 again, using backticks for quoting insert field
[develop] Escape backticks for table name and field name