Pending changes are shown on the overview page

Move build to top of build queue

Restrict maximum number of simultaneously running builds of one build configuration

Now it is possible to specify maximum number of concurrently running builds for a build configuration.

Bug fixes & improvements

TW-1876 Maven build runner gets stuck in dependency resolution loop

Several fixes and performance improvements in build log.

Notification templates engine now allows customization from plugins: a plugin is able to register its own patterns and processors for that patterns.