fix, if appium url set in nodeconfig, dont autopopulate

otherwise, the autopopulation will set the host to localhost/127.0.0.1, which
wont' work if the node and grid are not on the same machine
Merge pull request #2130 from sebv/sudo

fixing sudo grunt authorize
Fix EXDEV error when using renameSync to move
if we're not in a git repo. don't link commit hooks (fix #2141)
Merge pull request #2140 from bootstraponline/exdev

Fix EXDEV error when using renameSync to move
Merge pull request #2142 from jlipps/master

if we're not in a git repo. don't link commit hooks (fix #2141)
fix sudo behavior for windows (fix #2137)
Merge pull request #2128 from midopa/master

fix, if appium url set in nodeconfig, dont autopopulate
Merge pull request #2144 from jlipps/master

fix sudo behavior for windows (fix #2137)
Making the builtin app backup path configurable
putting force-iphone after force-ipad so that further tests run.