Support for no bin links flag in npm

When npm has the no bin links flag, phantomjs won't be located in the .bin folder as npm won't symlink it. These lines search for phantomjs in the standard node_modules folder to fix this case.
Merge pull request #7 from fredericlb/patch-1

support for no bin links flag in npm
0.2.1
Implementation of the captureFile option
Updated README for the captureFile option
removed extra space
changed setting name for file export
renamed captureFile -> dump
Merge pull request #9 from fredericlb/master

dump option
add run tasks
cleanup
0.2.2
Add silent mode support to a avoid a stream crash on error. Could be very useful when you use this plugin during development process with gulp-watch
[improvements] Fix some points, notified for the pull request
Merge pull request #11 from vba/slient-mode

add silent mode support
improve test