Multibyte strings

Set internal encoding
Multibyte strings (2)

stripos => mb_stripos
strlen => mb_strlen
strpos => mb_strpos
strrchr =>
mb_strrchr
strrpos => mb_strrpos
strstr => mb_strstr
strtolower =>
mb_strtolower
strtoupper => mb_strtoupper
substr_count =>
mb_substr_count
substr => mb_substr
DBEscapeString on $_REQUEST vars
Reorganize table in Medical.inc.php
Recover original Wkhtmltopdf class
Bugfix SQL bug about the date

Bugfix SQL bug when incomplete or non-existent date
Unescape strings

- for password encryption
- to display
- to search
Remove old string escaping method

Remove str_replace("\'","''",$value)
Link to Windows locales resource
CSS headerIcon
Help PDF rework

- CSS WPAdmin look'n'feel
- '%s Handbook' translation
Merge conflict