* injecting beans
* XML-based configuration replaced with Java Config.
* [BAEL-431] Exploring TestRestTemplate.
* Revert of evaluation task "XML-based configuration replaced with Java Config."
This reverts commit 66471cf057.
* Revert of evaluation task "injecting beans"
This reverts commit d2ac20185e.
* [BAEL-431] fix to the tests in TestRestTemplateBasicLiveTest.
* [BAEL-431] added more meaningful user and password for auth.
* [BAEL-820] examples of wait() and sleep() methods.
* [BAEL-820] wait() and sleep() examples.
* [BAEL-829] number of occurences of a char in a String.
* [BAEL-829] printlns changed to assertions.
* [BAEL-829] improved names of the tests.
* [BAEL-872] map and flatMap difference.
* removed duplicated countingChars class.
* [BAEL-872] changed Object into List.
* [BAEL-872] improved code for map() and flatMap() article.