MFen 1.48 -> 1.52:

Local revisions: 1.1.1000.2[1], 1.1.1000.3[2], 1.1.1000.4

Language improvements submitted by:
"Lippman" from ChinaUnix.net [1]
"ac" from FreeBSDChina Community [2]

Obtained from: The FreeBSD Simplified Chinese Project CVS