Docs: Translate sdk/misc-interface-guide/memory-allocation
Docs: Translate sdk/index
Docs: Translate sdk/http-headers/marshal-buffers
Merge pull request #101 from maskit/translate/sdk_http-headers_marshal-buffers

Docs: Translate sdk/http-headers/marshal-buffers
Merge pull request #102 from maskit/translate/sdk_misc_memory-allocation

Docs: Translate sdk/misc-interface-guide/memory-allocation
Merge pull request #103 from maskit/translate/sdk_index

Docs: Translate sdk/index
Doc: Update po files in reference/configuration/ and skd/io-guide/
Merge pull request #100 from masaori335/doc-ja_update

Doc: Update po files in reference/configuration/