Bug#835378: Package needs libtool binaries but do not depend on libtool-bin

[Breno Leitao <leitao@debian.org>]

Package: steghide
Version: 0.5.1-10
Severity: important

Currently this package does not build on a clean environemnt because it
depends on libtool binary, but does not mark libtool-bin as Build-dependent.
This causes the following FTBFS:

  libtool --mode=link g++  -O2 -Wall   -o steghide  Arg.o Arguments.o AssertionFailed.o AuFile.o AuSampleValues.o DFSAPHeuristic.o BFSAPHeuristic.o BinaryIO.o BitString.o BmpFile.o BmpPaletteSampleValue.o BmpRGBSampleValue.o BmpSampleValue.o WKSConstructionHeuristic.o DMDConstructionHeuristic.o CvrStgFile.o Edge.o EdgeIterator.o EmbData.o Embedder.o EncryptionAlgorithm.o EncryptionMode.o Extractor.o Graph.o JpegFile.o JpegSampleValue.o MCryptPP.o MHashKeyGen.o MHashPP.o Matching.o MatchingAlgorithm.o ProgressOutput.o PseudoRandomSource.o RGBTriple.o RandomSource.o SampleValue.o SampleValueAdjacencyList.o Selector.o Session.o SteghideError.o Terminal.o Utils.o Vertex.o WavChunk.o WavChunkHeader.o WavChunkUnused.o WavFile.o WavFormatChunk.o WavPCMSampleValue.o error.o main.o msg.o SMDConstructionHeuristic.o  -ljpeg -lmcrypt -lmhash -lz 
  /bin/bash: libtool: command not found