seth/ej — pull request #18 by habibutsu (2014-08-23 12:35:55+00:00)
Title: Ability to select items for which key starts with specified prefix

For example can select all users in following json-data:
```json
{
"user:1:name" : "User1",
"user:2:name": "User2"
}
```
```erlang
Users = ej:get({{startswith, <<"user">>}}, Data),
```