Change the book structure

[Nowosad]

• raster-vector to ch5
• crs to ch6
• io to ch7
• applications to the end of the book

[Robinlovelace]

Great summary - that's the plan for mid-April.

[Robinlovelace]

To clarify this is the proposed structure:

• Introduction

1) Foundations

• Geographic classes
• Attribute operations
• Spatial operations (could change title)
• Geometric operations
  • Raster vector interactions
• Reprojecting geographic data
• Geographic data I/O

2) Extensions

• Making maps with R
• Bridges to GIS (software)
• (Geo)algorithms and functions
• Statistical learning for geographic data

3) Applications

• Transport

• Geomarketing

• Ecological

• Synthesis