Change default alertserver port

BUG=skia:3036
TBR=jcgregorio

Review URL: https://codereview.chromium.org/696503003
Monitoring: install make

BUG=skia:3036

Review URL: https://codereview.chromium.org/693913002
Monitoring: install node

BUG=skia:3036

Review URL: https://codereview.chromium.org/692123002
Adding longer timeouts to nginx configurations

BUG=skia:

Review URL: https://codereview.chromium.org/694863002
More alertserver fixes

BUG=skia:3036
TBR=jcgregorio

Review URL: https://codereview.chromium.org/693943002
Fix alertserver flag

BUG=skia:3036
TBR=jcgregorio

Review URL: https://codereview.chromium.org/690333002