Merge pull request #33 from jimhickinbottom/pointerfix

fixed encoder tag option JSONMarshaler opt in for pointer fields

Merge pull request #32 from jimhickinbottom/master

added jsonmarshaler interface

Merge pull request #31 from nicholas-wright-bjss/master

Fix for recursive structs

Merge pull request #30 from nicholas-wright-bjss/master

Fix for nil *time.Time serialisation

Merge pull request #28 from petemcmahon365/master

escape newline, carriage return, tab with "\n","\r","\t" Thanks @petemcmahon365

Merge pull request #24 from variar/time_quote

Merge pull request #23 from bet365/struct_encoder_fastpaths

Merge pull request #21 from bet365/race

[]byte is wider than string

Merge pull request #20 from bet365/escape

added ,escape option which fixes #17

Merge pull request #18 from bet365/johngillott/sliceencoder-string-pe…

…rformance

Johngillott/sliceencoder string performance