resourcedir and jsondir errors

I had a yaml config like:

```
speed: 1000
max_rows: 500000
reverse: False
search_sort: startEpochMicrosec
jsondir: test1
resourcedir: test2

```
and got an key error due referencing jsondir and resourcedir keys. so I renamed the keys to rd and jd, and it works. Appears to me as though there is an limitation with using dir at the end of the key. Weird.

```
speed = confuse_config['speed'].get()
reverse = confuse_config['reverse'].get()
sortby = confuse_config['search_sort'].get()
jdir = confuse_config['jd'].get()
rdir = confuse_config['rd'].get()
```