Fix OSX install

Signed-off-by: Rob Caelers <rob.caelers@gmail.com>
Merge branch 'next' of github.com:rcaelers/workrave into next
Merge branch 'next' of github.com:rcaelers/workrave into next
Disallow in-source builds and remove .gitignore files.

Signed-off-by: Rob Caelers <rob.caelers@gmail.com>
Remove autoconf script

Signed-off-by: Rob Caelers <rob.caelers@gmail.com>
Remove old cmake files.

Signed-off-by: Rob Caelers <rob.caelers@gmail.com>
Remove executable mode from non-executable files.

Signed-off-by: Rob Caelers <rob.caelers@gmail.com>