Added CloudBees logo

Added CloudBees Built on Dev@cloud image
Added link to CloudBees's "Built on DEV@cloud"
Added cloud bees logo. Merged with master
Implement assertNotEquals() for float parameters.

Fix inconsistencies between assertEquals() and assertNotEquals() for
double parameters.
Change failure message in assertNotEquals() to show actual instead of
unexpected, to be consistent with assertNotSame().

Change the parameter names from first and second to unexpected and
actual.
Merge pull request #611 from motlin/master

Implement assertNotEquals() for float parameters.
Merge pull request #608 from Tibor17/junit.reopen

Updated build documentation in mavenization
Merge pull request #609 from shirish4you/master

Added cloudbees logo
Prepare for Maven release