v1.1.1

Refactor some log related codes

1. Avoid string type concatenation when printing logs.
2. Add the clockStr variable to cache the string form of the clock, thus avoiding frequent conversion when printing logs.

v1.1.0

We support some new features:

• Supports definition of multiple inter-schedulers between data centers and load balancers
• Support replaying Alibaba cluster dataset
• Supports simulating status reporting between the host and the master node through heartbeat
• Reconstructed event tag as enum object based on CloudSim 7G

We also fix some bugs.

v1.0.0

The base version corresponding to the LGDCloudSIm paper.