Added -0 option to csearch/cgrep
Reduce install invocation confusion

As suspected, it seems people have run into this confsion so make
the new instructions more prominent.
Fix tests by using the updated API
Binaries release support
(BACKWARDS INCOMPATIBLE CHANGE) Flag -follow-symlinks changed to -no-follow-symlinks

correcting the feel of the flag action and asserting that follow is the default behavior
Update contributors and suitable license texts
Give direct help for cgrep options
merged w/junkblocker