update to 2.0.5

See merge request !15

Update ms-office-online

See merge request !13

v2 initial commit

See merge request !12

Update desktop launcher template to include Comment and Keywords

Closes #15

See merge request !11

- this changes the license to BY-NC 4.0

Refactor Makefile to remove all duplication

This is a fairly major refactor of the Makefile content to entirely
remove duplication of commands, as well as ensuring all variable
placeholders are populated or blanked appropriately (previously,
placeholders were not always replaced and so the raw text was left
in place).

It also corrects the use of a @PREFIX@ holder in the ms-office-online
script where /usr/bin/env is instead "always" correct.

Add missing configuration for applications to work properly 

Update as required to support different launchers

replace subprocess with shell and add proper path for each Application