freeseer/freeseer#272 Improvements to Record page

- Add new section 'Record Over a Network'
  - Move 'Client' section as a subsection to it
- Move 'Report Tool' section to bottom of page
- Move footnotes section to bottom of page
- Fix minor issues
  - Proper underlining of 'Using the Report Tool' heading
  - More detailed TODO message
  - Fix typo: "No Issue" -> "No Issues"
  - Clean up comments in source
freeseer/freeseer#272 Improve 'Record' userguide

- Make it more clear how you can record over a network
  - Two sections, one for CLI, one for GUI
- Update client section
  - Replace old images with a single new one
  - Thanks @zxiiro for improving the client controller!