When gap_single_client is set to 'false', no gap is used when only one
client is shown in a tag. Since the max layout only ever shows one
client at a time it makes sense to apply this setting for this layout
regardless of the actual number of clients in that tag.
Additionally, if the 'master_fill_policy' property is set to
'master_width_factor', then use a gap even if there is only one client
visible and 'gap_single_client' is false.
This commit doesn't add any useful documentation, but adds
previously hidden documentation variables. It can be the basis
of a better layout documentation.
Fix#1246
It does not provide much value. The version number is already known to
ldoc globally in the "description" variable.
Signed-off-by: Uli Schlachter <psychon@znc.in>