clarified wav_parser docstring

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
added sox to system requirements

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
added audio filetype conversion
uses sox cmdline tool

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
added mp3, ogg support

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
added mp3, ogg test cases

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
added conversion libs to requirements

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
added debian-specific requirement

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
tweaked sox cmdline params

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
updated mp3, ogg test cases

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
added newlines to .py source files

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
modified speech extraction to add newline
makes output cleaner

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
added sox testing info to docstring

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
updated documentation
removed remnant file

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
switched to ShellParserTestCase

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
edited cmd formatting
now matches other source formatting

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
refactored speechrecognition parser
simplifies issue diagnosis

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
updated changelog

Signed-off-by: Arvind Chembarpu <achembarpu@gmail.com>
merging #64. closes #60
minor renaming of tesseract and speech_recog modules to reflect the types of files they deal with