Added support for Unicode translations in fTools visual

[nicanor-b]

A student of mine who uses the Simplified Chinese translation for QGIS receives the following error message and an incomplete list of results when running the Basic Statistics plugin:

IndexError: list index out of range
Traceback (most recent call last):
File "/Applications/QGIS.app/Contents/Resources/python/plugins/fTools/tools/doVisual.py", line 186, in runFinishedFromThread
item = QTableWidgetItem(tmp[1])
IndexError: list index out of range

I noticed that when Unicode characters for the Simplified Chinese translation are included in a result string, the ":" character used to split the string is encoded as "\uff1a". This patch adds support for splitting the result string when the colon is encoded with its Unicode value.

[m-kuhn]

Thank you.
Not sure if this is the best solution but there's probably not much harm it can do.

Do you know if anything ported from ftools to processing could be affected as well?

[nicanor-b]

Agreed -- it's not a clean solution, but it worked as a quick fix for my class.

Similar issues did not appear when using tools ported to Processing, but will update if I notice anything.