Switch from /bin/sh to /bin/bash

You have bashisms in your script and /bin/sh might not always be bash. In that case the script would fail (for example on Ubuntu).
Remove unneeded shebang in nvm.sh
Added command to get current nvm environment.
Added test for `nvm current`
Merge pull request #328 from naartjie/master

fix copy-packages in zsh (without breaking sh and bash). Closes #223, fixes #299.
Update nvm.sh

small fix fo nvm help info
Update nvm.sh

Fix - this line should be nvm use 0.10 - no 'v', and no incremental version number.
Update README.markdown
Merge branch 'master' into add-current-command
Merge pull request #331 from deiga/patch-1

Update README.markdown
Changed test according to comments
Merge pull request #205 from deiga/add-current-command

Added command to get current nvm environment.
Add `nvm current` to `nvm help`. Relates to #205.
Update nvm.sh

fix https://github.com/creationix/nvm/pull/330
Update nvm.sh

fix#https://github.com/creationix/nvm/pull/330
Merge pull request #330 from mibamur/patch-1

Update nvm.sh
Ignore node_modules.
ignore more urchin output.
Add a package.json.
Updating the README.