BadgerDB v2.0.2-rc1

Fixed

• Cast sz to uint32 to fix compilation on 32 bit. (#1175)
• Fix checkOverlap in compaction. (#1166)
• Avoid sync in inmemory mode. (#1190)
• Support disabling the cache completely. (#1185)
• Add support for caching bloomfilters. (#1204)
• Fix int overflow for 32bit. (#1216)
• Remove the 'this entry should've caught' log from value.go. (#1170)
• Rework concurrency semantics of valueLog.maxFid. (#1187)

Performance

• Use fastRand instead of locked-rand in skiplist. (#1173)
• Improve write stalling on level 0 and 1. (#1186)
• Disable compression and set ZSTD Compression Level to 1. (#1191)