Set Build Info: make sure build.txt is always assumed unchanged

Signed-off-by: mvglasow <michael -at- vonglasow.com>
Cosmetic improvements to French translation

Signed-off-by: mvglasow <michael -at- vonglasow.com>
Lock display rotation when in near-horizontal position, fixes #12. Thx mpqo

Signed-off-by: mvglasow <michael -at- vonglasow.com>