Optimizations in Basic.pm (removing regex).

Just checking the last character of the line and chopping it off is
~3.5x faster than running s/[\n\r]$//g.
Merge pull request #242 from mmcclimon/optimize_basic

Tiny optimization (removing regex in Basic.pm, next_text)
removed an extra substr call
shaved off a second by not making does_match() check that $opt->{regex} exists
specify the right ack to test
Do not muck with @before_ctx_lines if we do not use it
simplifying the profiling artguings
decrement with a -= operator
only normalize line endings if we have to
Remove the var for ack-standalone
make targets to compare ack 1.96 with 2.02 with local build
update target names