Updates to build.py script: - Merged generalized changes from the Kapacitor build.py script for   easier porting of features between projects - Changed the nightly versioning scheme to use a tilde instead of a   dash for easier upgrade paths. - Added `go get` call for each platform in case of platform-specific   build flags. - Added a `--no-stash` option to prevent uncommitted changes from   sneaking into packaged builds. - Better automatic handling of version numbers. - Removed per-platform go get command (for now). - Added better build and packaging logic for ARM architectures.
Updates to build.py script:
- Merged generalized changes from the Kapacitor build.py script for
  easier porting of features between projects
- Changed the nightly versioning scheme to use a tilde instead of a
  dash for easier upgrade paths.
- Added `go get` call for each platform in case of platform-specific
  build flags.
- Added a `--no-stash` option to prevent uncommitted changes from
  sneaking into packaged builds.
- Better automatic handling of version numbers.
- Removed per-platform go get command (for now).
- Added better build and packaging logic for ARM architectures.

li-ang/influxdb,linearb/influxdb,otoolep/influxdb,linearb/influxdb,daachi/influxdb,mnuessler/influxdb,jonseymour/influxdb,jonseymour/influxdb,linearb/influxdb,nooproblem/influxdb,joaopedrotaveira/influxdb,mnuessler/influxdb,chenziliang/influxdb,arussellsaw/influxdb,vladlopes/influxdb,apigee/influxdb,influxdb/influxdb,archsaber/influxdb,mark-rushakoff/influxdb,jgeiger/influxdb,mark-rushakoff/influxdb,otoolep/influxdb,runner-mei/influxdb,mark-rushakoff/influxdb,benbjohnson/influxdb,pkittenis/influxdb,jonseymour/influxdb,pkittenis/influxdb,jgeiger/influxdb,vladlopes/influxdb,mvadu/influxdb,vladlopes/influxdb,benbjohnson/influxdb,mvadu/influxdb,runner-mei/influxdb,apigee/influxdb,arussellsaw/influxdb,daachi/influxdb,jipperinbham/influxdb,pkittenis/influxdb,influxdb/influxdb,pkittenis/influxdb,jgeiger/influxdb,mvadu/influxdb,jipperinbham/influxdb,influxdb/influxdb,daachi/influxdb,pkittenis/influxdb,nooproblem/influxdb,chenziliang/influxdb,mark-rushakoff/influxdb,mark-rushakoff/influxdb,pkittenis/influxdb,mnuessler/influxdb,mvadu/influxdb,mvadu/influxdb,linearb/influxdb,daachi/influxdb,otoolep/influxdb,mvadu/influxdb,joaopedrotaveira/influxdb,influxdb/influxdb,chenziliang/influxdb,mnuessler/influxdb,mark-rushakoff/influxdb,apigee/influxdb,runner-mei/influxdb,daachi/influxdb,influxdata/influxdb,otoolep/influxdb,vladlopes/influxdb,jipperinbham/influxdb,joaopedrotaveira/influxdb,benbjohnson/influxdb,linearb/influxdb,jonseymour/influxdb,jipperinbham/influxdb,arussellsaw/influxdb,apigee/influxdb,archsaber/influxdb,jgeiger/influxdb,influxdata/influxdb,nooproblem/influxdb,joaopedrotaveira/influxdb,otoolep/influxdb,chenziliang/influxdb,mnuessler/influxdb,daachi/influxdb,arussellsaw/influxdb,jipperinbham/influxdb,influxdb/influxdb,mnuessler/influxdb,nooproblem/influxdb,li-ang/influxdb,archsaber/influxdb,apigee/influxdb,jgeiger/influxdb,archsaber/influxdb,otoolep/influxdb,runner-mei/influxdb,jonseymour/influxdb,arussellsaw/influxdb,influxdb/influxdb,arussellsaw/influxdb,jgeiger/influxdb,apigee/influxdb,jipperinbham/influxdb,joaopedrotaveira/influxdb,nooproblem/influxdb,jonseymour/influxdb,benbjohnson/influxdb