TwitterBridge fix: merge down remaining 64-bit Snowflake ID fixes for twitterstatusfetcher.php from 0.9.x
Original fixes in
c169dcb5221cf3dd452c291bf97374bb459cc5b9; didn't get merged in
39cad55711897323fac5f651c003c4d815a51ae0 because the code had been broken out to another file, but manual merge went smooth.
These affect twitterstatusfetcher.php on all 32-bit installs and some 64-bit installs (depending on whether the version of the JSON library reads the large numbers as long or double internally). 64-bit bug is harder to see as it tends to manifest as off-by-one due to losing a bit of precision off the end.