Build Kaldi within cygwin

Building Kaldi on windows with VS is pretty annoying. We therefore highly recommend to build the stuff within cygwin. The process is simple:

1. install cygwin. Select the following components:

 a. make b. gcc c. automake d. perl e. python f. clapack g. wget h. gfortrain+g77+f77 i. zlib 

2. download kaldi from CSLT server at /nfs/disk/perm/tool/kaldi

3. install tools: go to kaldi/tools, run install.sh if you have all the required components installed.

4. install the core: go to kaldi/src, ./configure; make