custom start time out using droplet.yaml
Merge pull request #2 from X-Plat/x-plat-hctimeout-feature

X plat hctimeout feature
Add submodule of C lang buildpack for x-plat.
rpc support
delete backup file for rpc_suppoort
Merge pull request #3 from X-Plat/rpc_feature

Rpc feature #ci failed
Update spec tests
Merge branch 'x-plat_bugfix_piaoyi' into x-plat_dev
bugfix:
1. app link eixt 255 because terminal output to large(fix by modify buildpack)
2. app crash but not destory because hang in call warden copy_out.(just skip this operation)