* Change tabs to spaces.
* Make Boost required.

If anyone can refine this, it is welcomed (see minizip/CMakeLists.txt for comments)

This allows you to install only specific components (i.e. binaries, resources, doc files in specific languages), particularly useful for package mainatiners.
Default install will work as before (i.e. install everything).

* REQUIRED is not necessary.
* Build instruction update.
* Do not build minizip on windows. Some more work is needed.

- Fix minizip build.
- Fix eeschema/plugins build.
- Update TODO.

set svn:eol-style property to native for all ascii files to support cross platform development