Merge pull request #62 from rschimmack/master

Improved 1.3.3. Fundamental Concepts (thx RSchimmack)
Added check for ${TRAVIS_PULL_REQUEST}
introduced "TRAVIS_PULL_REQUEST" to build script
moved TRAVIS_PULL_REQUEST to build.gradle
Merge pull request #63 from rschimmack/master

rschimmack fixed title issue of figure-improvement-backlog
* added rschimmeck to team-thx-list
* corrected two links
fixed build warning

warning was
> Deprecated dynamic property: "travisPr" on "task ':publish'", value: "false".
Merge pull request #2 from aim42/master

Update