use $xoopsDB method for sql query for support MySQLi
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli

Conflicts:
	html/modules/piCal/class/piCal.php
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli

Conflicts:
	html/modules/piCal/class/piCal.php
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli
Merge branch 'master' into mysqli