HTTP port can now be overriden through use of "port" environmental
variable.

Prefer messaging "want" over "wanted" in error messages, this is more
idiomatic Golang.

Move away from Go ARMv6 (RPi Zero) and give ARMv7 as a minimum
version for release binaries.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>

Signed-off-by: Vivek Singh <vivekkmr45@yahoo.in>

updated testcases

applied go fmt to readconfig

Signed-off-by: Vivek Singh <vivekkmr45@yahoo.in>

added requested changes in code review

Signed-off-by: Vivek Singh <vivekkmr45@yahoo.in>

Fixes 251. Set debug_write to false by default. Added log output of byte count when debug is false. Updated tests to match new default

Signed-off-by: Burton Rheutan <rheutan7@gmail.com>

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

- Watchdog - allow new methods with and without body.
- Enforce hard-timeout via exec_timeout variable.
- Correct bug in timeouts for read/write of HTTP.
- Documentation for new verbs and hard timeout.

Signed-off-by: Alex Ellis <alexellis2@gmail.com>