fix indentation (4 -> 2 spaces)
add comment to findEgrepPatternCmd

It also requires for cscope to be invoked at the same directory as db
was created.
add nexpect dependency
add grunt
lint: fix indent
lint: workaround for grunt-coffeelint

Probably it will be fixed after grunt-coffeelint upgrades to
coffeelint-1.3.0.