stop downlading when sufficient data are downloaded for recovring

4.0.3

update cli version

fix messy code of Chinese characters while sending mail on Windows

4.0.2

fopen use binary

fix the bug of mail decryption on Windows

4.0.1

fix the bug of decryptFile on Windows.

First version of mail support.

4.0.0

update usage.md

3.0.4

secp256k1_context_create only once.

3.0.3

secp256k1_context_create only once.

3.0.1

update CMakeLists.txt.

Significant updates.

support file share.

2.1.0

Share support.

2.0.9

modify bridge url.