Merge tag 'release_0.6.0' into develop

Problem 6 completed
lein layout for euler07
Add project to idea; update dependencies
Update docs.
Update namespaces.
Fix namespace
Fix main class
"Unit" test
A working solution... but too slow
Updated prime generation.
Update code to use new prime generation facilities.
Test the solution
Fix euler-utils test.
Merge pull request #2 from cdombroski/feature/euler07

Feature/euler07
Version bump for release.
Merge branch 'release/release_0.7.0'