[FFmpeg-cvslog] Merge remote-tracking branch 'lukaszmluki/master'

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sat Jun  8 15:59:07 2013 +0200| [33fb22f800dcb1eff5f078e14c7a9c6e73126bc2] | committer: Michael Niedermayer

Merge remote-tracking branch 'lukaszmluki/master'

* lukaszmluki/master:
  ftp: add invalid code for RETR operation
  ftp: probe seek capability
  ftp: fix seeking beyond file size
  ftp: abort function optimalization
  ftp: explicit return code checks
  ftp: fix flush control connection input
  ftp: reconnect on tcp read error

Merged-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=33fb22f800dcb1eff5f078e14c7a9c6e73126bc2
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