Can't have an apostrophe in the name of a Group Field

Haven't tested this out yet on passwords for accounts, but I got the following error

```
Command: 'printf 'URL: http://group' | lpass add --non-interactive --sync=no 'Carl\'s Project/'', Stdout: '', Stderr: 'sh: -c: line 0: unexpected EOF while looking for matching `''
sh: -c: line 1: syntax error: unexpected end of file
```
