OMML reader: change default accent.

The default had previously been set as accute (possibly as a placeholder).
It appears to be circumflex/hat instead. This corrects the error.
Merge pull request #64 from jkr/accentFix

OMML reader: change default accent.
Removed tests/tmp, tests/tmpdiff.

I imagine these were added accidentally.
Added network-uri flag.

This addresses the split of network and network-uri packages.
added reference to the original readme
Merged 178df262 from jgm