Tags

Fail gracefully when installer run on an OS that is supported by some other means (e.g. a package manager)

Bugs fixed:

* Ensure installer could be overwritten in the future
* Refactor post installation code to minimise repeated code blocks
* Fix typo in an exception handler

Revert crash of installer when delete of old version fails

Fix silly bug in debug message

Release of 3.0.7 of the installer - fixes bug in error reporting code for old version deletion.

Correct mistakes that should have been in the 3.0.5-b tag