(no bug) - clean up phony targets and document test-webapp alias target
(no bug) - clean up phony targets and document test-webapp alias target

cliqz/socorro,mozilla/socorro,m8ttyB/socorro,adngdb/socorro,AdrianGaudebert/socorro,twobraids/socorro,spthaolt/socorro,pcabido/socorro,mozilla/socorro,KaiRo-at/socorro,spthaolt/socorro,pcabido/socorro,AdrianGaudebert/socorro,luser/socorro,lonnen/socorro,linearregression/socorro,bsmedberg/socorro,KaiRo-at/socorro,luser/socorro,yglazko/socorro,rhelmer/socorro,m8ttyB/socorro,mozilla/socorro,Tchanders/socorro,twobraids/socorro,luser/socorro,mozilla/socorro,m8ttyB/socorro,cliqz/socorro,twobraids/socorro,Tayamarn/socorro,cliqz/socorro,yglazko/socorro,bsmedberg/socorro,lonnen/socorro,Tchanders/socorro,lonnen/socorro,yglazko/socorro,yglazko/socorro,AdrianGaudebert/socorro,adngdb/socorro,twobraids/socorro,linearregression/socorro,pcabido/socorro,spthaolt/socorro,twobraids/socorro,KaiRo-at/socorro,Serg09/socorro,pcabido/socorro,pcabido/socorro,AdrianGaudebert/socorro,adngdb/socorro,m8ttyB/socorro,Tayamarn/socorro,twobraids/socorro,KaiRo-at/socorro,bsmedberg/socorro,m8ttyB/socorro,rhelmer/socorro,adngdb/socorro,mozilla/socorro,luser/socorro,Tayamarn/socorro,Serg09/socorro,bsmedberg/socorro,rhelmer/socorro,pcabido/socorro,cliqz/socorro,Serg09/socorro,rhelmer/socorro,cliqz/socorro,yglazko/socorro,spthaolt/socorro,linearregression/socorro,yglazko/socorro,mozilla/socorro,Tchanders/socorro,spthaolt/socorro,AdrianGaudebert/socorro,KaiRo-at/socorro,Tchanders/socorro,Tchanders/socorro,Serg09/socorro,Tayamarn/socorro,Tayamarn/socorro,lonnen/socorro,rhelmer/socorro,luser/socorro,luser/socorro,linearregression/socorro,Tayamarn/socorro,Serg09/socorro,Tchanders/socorro,m8ttyB/socorro,linearregression/socorro,adngdb/socorro,adngdb/socorro,rhelmer/socorro,Serg09/socorro,AdrianGaudebert/socorro,linearregression/socorro,spthaolt/socorro,KaiRo-at/socorro,bsmedberg/socorro,cliqz/socorro