Improve ALE project style checking

* The project style linter now runs while you type.
* Now the scripts for checking the project require blank lines.
* Many style issues have been found and fixed.

ale_linters/scala/sbtserver.vim

@@ -6,15 +6,19 @@ call ale#Set('scala_sbtserver_project_root', '')
 
 function! ale_linters#scala#sbtserver#GetProjectRoot(buffer) abort
     let l:project_root = ale#Var(a:buffer, 'scala_sbtserver_project_root')
+
     if l:project_root is? ''
         let l:project_root = ale#path#FindNearestFile(a:buffer, 'build.sbt')
+
         return !empty(l:project_root) ? fnamemodify(l:project_root, ':h') : ''
     endif
+
     return l:project_root
 endfunction
 
 function! ale_linters#scala#sbtserver#GetAddress(buffer) abort
     let l:address = ale#Var(a:buffer, 'scala_sbtserver_address')
+
     return l:address
 endfunction
 

ale_linters/scala/scalastyle.vim

@@ -53,12 +53,14 @@ function! ale_linters#scala#scalastyle#GetCommand(buffer) abort
     \   'scalastyle_config.xml',
     \   'scalastyle-config.xml'
     \]
+
     for l:config in l:potential_configs
         let l:scalastyle_config = ale#path#ResolveLocalPath(
         \   a:buffer,
         \   l:config,
         \   ''
         \)
+
         if !empty(l:scalastyle_config)
             break
         endif