added documentation for .nvmrc usage
Merge pull request #280 from activars/master

added documentation for .nvmrc usage
Fixed curl silently ignoring 302 redirections

Under certain network environments, due to poor implementation of file
download caches (immoral Chinese ISP), the direct download of Node.js
packages (http://nodejs.org/dist/node-$VERSION.tar.gz) will be
redirected to alternative urls using 302 redirections, which are not
handled by `curl --process-bar` by default. Instead, curl will "fail"
silently without creating any output file or error exitcode.
(Tested under Ubuntu 12.04 Desktop)

Fixed by adding "-L" switches to the curl commands responsible for
downloading the binary and source node.js packages.
Merge pull request #282 from interarticle/master

Fixed curl silently ignoring 302 redirections. Fixes #281
Lowercasing nvm like npm.
Add LICENSE file. Closes #122.
Merge pull request #283 from ljharb/add_license

Add license
Fixed typo.
Merge pull request #289 from martiniwanowski/master

Fixed typo.
Add check for git to install script.
Fix for issue #196, deconfusified the scenario
Merge pull request #292 from martiniwanowski/master

Fix for issue #196, deconfusified the scenario
updt urchin lnk, urchin.sh domain pending delete

$ curl -i www.urchin.sh
curl: (6) Could not resolve host: www.urchin.sh; nodename nor servname provided, or not known

http://www.nic.sh/cgi-bin/whois
"Domain pendingDelete - expired 2013-07-12, unless it is renewed it will be deleted at or after 00:10 GMT 90 days beyond the expiry date."
Merge pull request #293 from lloydde/patch-1

updt urchin lnk, urchin.sh domain pending delete
Finds NVM_DIR without using cd

Using `cd` makes the nvm directory the number-one directory in `autojump`'s database---which is somewhat confusing since the user basically never `cd`s to it directly!---so here's an alternative method that doesn't use the `cd` command. I've checked it works in both Bash and Zsh.
Use only shell builtins to avoid triggering autojump, instead of needing GNU readlink

Under Zsh, the `-q` flag to `cd` makes it not run `chpwd` hooks and hence makes it not add `~/.nvm` to `autojump`.
Merge pull request #294 from 00Davo/patch-1

Finds NVM_DIR with `cd -q` on zsh
Merge pull request #246 from ddryden/master

Add check for git in the installer script.
Mentioning `install-gitless.sh` in the "no git" error message - finishing off #246.