Make gitcrypt support sumodule encryption for git 1.7.8+
create a package.json
document installation
fix typo in fake github repo url
Merge pull request #41 from brad/patch-1

Fix typo in example repository URL
Merge pull request #36 from calfzhou/submodule

Make gitcrypt support sumodule encryption for git 1.7.8+
Merge pull request #37 from tlevine/npm

Add package.json for NPM installation.