Ensure that parallel parsing sbs calls pass on --no-depend-generate and --no-depend-include (as these influence makefile generation). Make .DEFAULT a double-colon target, so we don't have to worry about duplicate instances due to -include. Code review updates.

load "%1" "%2"
filter "*.oby"
select all
compare rules-based
file-report layout:side-by-side options:display-mismatches,ignore-unimportant,line-numbers output-to:"%3.html" output-options:html-color