Merge pull request #8 from alexeyvo/compress_encrypt

Implement encryption of file
Add ability to compress and ecrypt same file
Disable crash dialogs to allow running tests
Merge pull request #9 from alexeyvo/compress_encrypt

Add ability to autogenerate aes key from password
Fix bug caused buf to be shared across threads
Show is_compressed, is_encrypted, compressed_len data in example
Remove wrong usage of assert() causing code lost in release mode
Update readme
Merge pull request #10 from alexeyvo/compress_encrypt

Add ability to compress and ecrypt same file
Avoid buffer change while encrypting data
Rename buf_for_compress to buf_for_compress_encrypt