Update documentation for executeQueryWithFormat and executeUpdateWithFormat
Merge pull request #269 from robertmryan/master

Update documentation for executeQueryWithFormat and executeUpdateWithFormat
Added cast to fix warning on 32-bit builds.

The call to memcpy in -dataForColumnIndex: was being passed an int (it accepts a size_t, ie: long on some platforms). This generated a warning in Xcode 5 when building (in my instance) for the iPad.
Merge pull request #271 from aryounce/patch-1

Added cast to fix warning on 32-bit builds.
Use `dataWithBytes` instead of `memcpy`
Merge pull request #272 from robertmryan/master

Use `dataWithBytes` instead of `memcpy`
Updated readme pointing to other projects using FMDB, as well as a support section telling everyone to send me all their money.
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