fix-time-micros-from-native

Merge pull request linkedin#240 from xmcqueen/master

fixed compile problem in logical_type_test. Changed MaxInt to MaxInt32

Merge pull request linkedin#234 from xmcqueen/master

complete support for standard/simple json and an avro tool

support large decimals

32-bit arch support

empty namespace allowed

ocf_writer test works on windows

canonical subtype and reference type names are scoped by namespace

record field default values for primitive types casted linkedin#139

comment typo and regression test cases