Fix typos

Just a few typos I caught with [lein-spell](https://github.com/cldwalker/lein-spell)

If you'd like to use lein-spell to catch future typos, you'll want to have this local whitelist in.lein-spell
```
mygroup
getenv
myproj
precomp
megacorp
somejar
superservice
milgrim
locative
blueant
cdoc
hooke
midje
myplugin
myproject
newnew
phil
pprint
myapp
robert
superlib
sourcery
eshell
fancypants
filespecs
leinrc
mdash
myrepo
wburke
```