chore: bump version correctly

chore: update bin

fix: don't write 0 to SLOT 6

Fixes: #5

v1.0.1 build

stable public release

fix 7bit get (cspect support)

Only works for smaller sizes, but importantly it works again.

fix 7bit post on byte lenght mod 3 == 2

Got my 1 and 2 switched around

correct build version to release candidate

connection: keep-alive

Instead of requesting the connection: close - which it appears some
ESPs will close the connection during buffering the uart data, now
we request with connection: keep-alive and manually close the TCP
connection when we're done.

This is achieved by parsing the http headers, looking for content-length
converting the value to a 32bit value, then subtracting the chunks we
get from the uart until the length reaches zero.

Chunked encoding is still going to be a problem because the bytes
include "metadata" that says how much data we've got in a chunk
so the length won't match the number of bytes coming down, but chunked
encoding wasn't supported yet anyway, so it's still an open issue.

This has been tested on AT versions:

- 1.1.0.0
- 1.2.0.0
- 1.3.0.0
- 1.6.0.0 (which had the problem in the first place)

Merge pull request #2 from remy/http