Initial commit
task 1.1 without tests
re-organize Java sources in Maven style
use 2-digit numbering for units and tasks
mavenizing
task 1.1 - unit-tests added
task 1.2 - blank
tech commit 1
tech commit 2
tech commit 3
tech commit 4
task 1.2
task 1.3
one more solution for task 1.3
task 1.4 - partly implemented (only a single solution for now)
pom version updated
task 1.4 - complete
task 1.5
task 1.1 - one more case implemented
task 1.6 & 1.7