Update requirements and add setup instructions

Author: jyapayne

SETUP.md

@@ -0,0 +1,49 @@
+#Setup Guide
+
+In order to run Web2Executable from Python code to make modifications to this repo, you'll need to install a few prerequisites first.
+
+##Prerequisites
+
+###Qt 4.8.7
+
+Download and install Qt 4.8.7 from [here](https://download.qt.io/official_releases/qt/4.8/4.8.7/) or from your package manager. PySide uses Qt 4.8.X and is incompatible with Qt 5 and higher.
+
+For Mac OSX, it might be needed to install the latest 4.8.X version via compiling the source. Download the `qt-everywhere-opensource-src-4.8.X` version and run the following in the extracted directory:
+
+```
+./configure
+make
+sudo make install
+```
+
+Alternatively, you may wish to install it via homebrew if you have it installed:
+
+```
+brew install qt
+```
+
+###Python 3.4
+
+Download and install the latest Python3.4.X release from the Python website. Python 3.5 and higher may work, but this repo was only tested with Python 3.4.
+
+###System requirements
+
+If you want to use the conversion of any image to icns and png using Pillow, you must install some libraries.
+
+libjpeg, libpng, openjpeg
+
+###Pip Requirements
+
+Install pip requirements with
+
+```
+pip install -r requirements.txt
+```
+
+##Running
+
+Once all of the above are installed, simply run:
+
+```
+python3.4 main.py
+```

requirements.txt

@@ -5,3 +5,4 @@ semantic_version
 appdirs
 validators
 requests
+https://github.com/pyinstaller/pyinstaller/archive/develop.zip