aeson-0.9.0.1: Fast JSON parsing and encoding

# aeson-0.9.0.1: Fast JSON parsing and encoding

A JSON parsing and encoding library optimized for ease of use and high performance.

To get started, see the documentation for the `Data.Aeson` module below.

Parsing performance on an early 2011 MacBook Pro (2.2GHz Core i7), running 64-bit GHC 7.6.3, for mostly-English tweets from Twitter's JSON search API:

- 0.8 KB: 34124 msg/sec (27.8 MB/sec)
- 6.4 KB: 6833 msg/sec (43.0 MB/sec)
- 11.8 KB: 3410 msg/sec (39.2 MB/sec)
- 31.2 KB: 1157 msg/sec (35.3 MB/sec)
- 61.5 KB: 542 msg/sec (32.5 MB/sec)

Handling heavily-escaped text is a little more work. Here is parsing performance with Japanese tweets, where much of the text is entirely Unicode-escaped.

- 14.6 KB: 2101 msg/sec (30.0 MB/sec)
- 44.1 KB: 667 msg/sec (28.7 MB/sec)
- 82.9 KB: 360 msg/sec (29.2 MB/sec)

Encoding performance on the same machine and data:

- English, 0.8 KB: 109697 msg/sec (89.3 MB/sec)
- English, 6.4 KB: 18517 msg/sec (116.4 MB/sec)
- Engish, 61.5 KB: 1963 msg/sec (118.0 MB/sec)
- Japanese, 14.6 KB: 12140 msg/sec (173.5 MB/sec)
- Japanese, 44.1 KB: 3980 msg/sec (171.3 MB/sec)

(A note on naming: in Greek mythology, Aeson was the father of Jason.)

Modules

- Data
  - Data.Aeson
    - Data.Aeson.Encode
    - Data.Aeson.Generic
    - Data.Aeson.Parser
    - Data.Aeson.TH
    - Data.Aeson.Types