Fix GitHub team import in admin Prior to this commit, importing the GitHub team in the admin page would result in an HTTP 500 error with a `TransactionRequiredException`.
Fix GitHub team import in admin
Prior to this commit, importing the GitHub team in the admin page
would result in an HTTP 500 error with a `TransactionRequiredException`.

While the service method was annotated with `@Transactional`, the
application configuration missed the `@EnableTransactionManagement`.

TabberGit/sagan,lowtalker/sagan,dsyer/sagan,lowtalker/sagan,mbateman/sagan,dkushner/sagan,vizewang/sagan,BHASKARSDEN277GITHUB/sagan,vizewang/sagan,dvaughn555/sagan,garylgh/sagan,dlizarra/sagan,gregturn/sagan,eonezhang/sagan,amit-siddhu/sagan,dvaughn555/sagan,dkushner/sagan,dsyer/sagan,vizewang/sagan,dkushner/sagan,dlizarra/sagan,dharmaraju/sagan,spring-io/sagan,lowtalker/sagan,amit-siddhu/sagan,spring-io/sagan,dharmaraju/sagan,dsyer/sagan,dvaughn555/sagan,martinlippert/sagan,mbateman/sagan,garylgh/sagan,garylgh/sagan,dharmaraju/sagan,martinlippert/sagan,dlizarra/sagan,rwinch/sagan,andriykonoz/sagan,gregturn/sagan,eonezhang/sagan,eonezhang/sagan,dvaughn555/sagan,mbateman/sagan,spring-io/sagan,TabberGit/sagan,dlizarra/sagan,rwinch/sagan,martinlippert/sagan,yhj630520/sagan,BHASKARSDEN277GITHUB/sagan,TabberGit/sagan,dharmaraju/sagan,BHASKARSDEN277GITHUB/sagan,seoilhyun/sagan,dkushner/sagan,seoilhyun/sagan,yhj630520/sagan,lowtalker/sagan,gregturn/sagan,andriykonoz/sagan,amit-siddhu/sagan,spring-io/sagan,rwinch/sagan,eonezhang/sagan,garylgh/sagan,mbateman/sagan,seoilhyun/sagan,rwinch/sagan,amit-siddhu/sagan,martinlippert/sagan,vizewang/sagan,andriykonoz/sagan,yhj630520/sagan,BHASKARSDEN277GITHUB/sagan,andriykonoz/sagan,seoilhyun/sagan,yhj630520/sagan,dsyer/sagan,TabberGit/sagan