- "Importer" folder renamed "importer"
- corrected detecting of 64bit architecture
- build context file is created in build.sh

- Fixed permissions of qt libs and plugins
- Added some missing plugins (and maybe a couple too many)
- Dependency list is built automatically, while excluding qt libs

- Separated build and package
- OpenBoard now installs in /opt
- All binaries are stripped, for smaller package size

also added error handling and displaying to the user.

Credit: Jaroslav Ryník

I can't get the mobile site to display correctly; the position of the
contents moves around depending on the widget's position on the board.

Switched back to the desktop site because it's not worth spending days
on this.

Credit: Jaroslav Ryník

(widgets' size and position weren't necessarily calculated based on
their current screen, but on the entire desktop geometry)

This also fixes the skewing observed during podcast recording

Adds Pixabay image search, to replace the defunct Google search