v0.8

Preparing for the first release of StackVisualizer.

Changes since v0.2:

• Verified and refactored as required existing code
• Implemented per Byte or per Word data visualization
• Added options for decimal addresses and decimal values
• Added coloring of the table cell that $sp points to
• Various GUI updates (font, colors, table resizing etc)
• Implemented preservation of stored register column data among table transformations (per Byte or per Word visualizations)
• Bug fixes