machine_code 0.0.5

Generating machine codes of different lengths through hard drive's uuid and salt.

0.0.5

• remove upper case cause linux return lower case

0.0.4

• use upper case to return machine code

0.0.3

• fix linux get hard drive's uuid
• remove salt support

0.0.2

• generate machine code only by hard drive's uuid and salt

0.0.1

• init release