When size of the given file is less than 1024 (DICTIONARY_BYTES), dict[] may contain garbage.
Therefore, test_decompress() fails with garbage dictionary.
This change set fixes the failure of test for dictionaryRandomAccess with TESTFILE_SMALL.
- promoted LZ4_resetStream_fast() to stable
- moved LZ4_resetStream() into deprecate, but without triggering a compiler warning
- update all sources to no longer rely on LZ4_resetStream()
note : LZ4_initStream() proposal is slightly different :
it's able to initialize any buffer, provided that it's large enough.
To this end, it accepts a void*, and returns an LZ4_stream_t*.
