Documentation: Adjust 'Installation' Subsection

[jeff1evesque]

We need to add additional packages:

# allows `./autogen.sh` installation for sphinx git submodules 
$ sudo apt-get install autoconf
$ sudo apt-get install libtool
$ sudo apt-get install bison
$ sudo apt-get install swig

Therefore, the Installation subsection should be changed as follows:

# General Packages:
sudo apt-get update
sudo apt-get install inotify-tools
sudo apt-get install ffmpeg
sudo apt-get install firefox
sudo apt-get install flashplugin-installer
sudo apt-get install git-core
sudo apt-get install lamp-server^ phpmyadmin

# Sphinx Packages: allow `./autogen.sh`, `sudo make install` for submodules
$ sudo apt-get install autoconf
$ sudo apt-get install libtool
$ sudo apt-get install bison
$ sudo apt-get install swig
$ sudo apt-get install python-dev

This will allow us to install Sphinx related submodules:

$ cd /var/www/audio-analyzer/pocketsphinx/sphinxbase
$ ./autogen.sh

**Error**: You must have `autoconf' installed to.
Download the appropriate package for your distribution,
or get the source tarball at ftp://ftp.gnu.org/pub/gnu/

**Error**: You must have `libtool' installed.
Get ftp://ftp.gnu.org/pub/gnu/libtool-1.2d.tar.gz
(or a newer version if it is available)

**Error**: You must have `automake' installed.
Get ftp://ftp.gnu.org/pub/gnu/automake-1.3.tar.gz
(or a newer version if it is available)