Fix MessageIdentifiers index
Fix rate method
Show trustpathable predicates first in search
Add cached emails to search results
TrustPaths index
Update the example message in readme
Update README.md
Initialize values properly in data.h
Change default port to 4944 and for rpc 4945
Update README build/develop instructions

Changed git link to not require key validation.

Changed ./identifid to ./identifi. I'm not sure which name was intended,
but the program currently uses 'identifi'.
Merge pull request #45 from thofmann/master

Update README build/develop instructions