Merge branch '134-xf86back-and-xf86forward-not-working-anymore' into 'master'

Resolve "XF86Back and XF86Forward not working anymore"

Closes #134 (closed)

See merge request !32 (merged)

(cherry picked from commit 3ba92d47)

2c5882aa build: Detect X11/XF86keysym.h to enable extra keys bdd1c3b0 build: Fix indent style