[Cin] Re-created and checked in cin.po +

[Phyllis Smith]

A few hours ago, I created a new cin.po as Andrew had suggested since it
was over 1.5 years old and I checked it into GIT.
Also, checked in the following small fixes:
   1) the warn = 0 instead of 1 in batchrender.C (I missed this and should
have found it in yesterday's test)
   2) added 1 more tooltip on Dangerous flag setting in appearanceprefs.C
and slight re-wording on other one
   3) removed the sample/display/interlace printf statements from ffmpeg.C
and fileffmpeg.C (I hope that is OK)
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