Update README.markdown
Merge pull request #47 from xhacker/patch-1

Update README.markdown
Update readme for new delegate method.
Donate via gittip.
Initial Travis-CI configuration.
Build example project with Travis-CI.
Use iphonesimulator SDK to avoid code signing issues.
Update USM API in example project.
Project state PNGs in README.
Updated to handle desync issues caused by illegal SQL operations.

[ADDED]     Handle cloud corruption caused by illegal SQL operations.
Asynchronous StoreUUID file reading.

[UPDATED]   Made StoreUUID access asynchronous to speed up store loading.
Fixed bug when iCloud was not available.

[FIXED]     Buggy reaction to iCloud not being available.
Merge pull request #3 from lhunath/master

update