[Main Feature] Support Translation Memory

[metasmile]

Main Mission

• Fast cache to read the translation results
• Collect translated resources from users.(For traffic distribution of translation)

Workflow

• User runs transync
• Prefetching translated resources from TM
• Translate by string
• The key is in English, the translation results being a value.
• Continues to accumulate.
• Export(push) to main github repo if user wants

key value store : use shelve
format to export : use json

es.json
{
  'version' : 1
  'english sentence(original sentence) 1' : 'translated sentence 1',
  'english sentence(original sentence) 2' : 'translated sentence 2'  
}