Version 2.0.

• Added the source codes of AgentPolis platform (agentpolis.org) to the project.
• Reorganized and renamed some projects and packages to make more sense.
• Revised logic constructors and divided them among individual examples.
• Centralized and decentralized examples now have their own separate projects (not only packages like in ver. 1.2.).
• Implemented automated propagation of non-GitHub commits to main GitHub repo.
• Ready-to-use Eclipse projects are now in the repo and should stay up-to-date even after future commits.
• Several changes in the API.
• Agents can now send string messages to each other.
• Included much more advanced benchmark generator classes, which detect city center locations by using OSM tags, and use them to generate more realistic spatial distribution of travel requests (in addition to time distribution from ver. 1.2.).
• Added LookAt KML tags to generated visualization, so that users don't need to adjust two time sliders every time they load the visualization in Google Earth.
• Visualization icons are now loaded from "data" folder in the benchmark package (can be changed by users) and stored in KMZ files. This also solves the problem with hotlinking some external images and removes the dependency on internet connection.
• Fixed some minor bugs in visualization.
• Removed some deprecated main classes.