Esper-tool

- added 'all' option to write requests in interactive mode
- interactive mode can now handle spaces in arrays when writing. ie "write <var> [1, 3, 5] <offset>" now works properly
- interactive and write modes can now handle oddly cased booleans when writing. ie "write <var> True" now works
- changed interactive mode read printout for arrays, now lists <index> <element data> as rows for easier parsing
- interactive mode write will now pre-parse data payload and report if the payload is not proper JSON

- added documentation for timeout to README.rst
- cleaned up documentation slightly

- fix whitespace issue
- add usage and example to timeout option in interactive mode
- fix print formatting error in do_read()
- removed some pylint warnings

- added command line argument "-t N" or "--timeout N" to set HTTP request timeout in seconds
- added interactive mode option 'timeout N' to set HTTP request timeout in seconds
- hitting enter on an empty line in interactive mode no longer resends the last command
- timing out no longer kicks you out of interactive mode
- 'ls' now returns up to four elements before it just shows Array(len) in data field
- 'ls' now only requests five elements from each var in a module, instead of all the data
- 'ls' now requests each variable individually to ease issues with timeouts and slow responses
- missing user/pass parameters passed to upload command

- added 5 second timeout to requests.get() and requests.post() calls

- commented out windows privilege elevation code
- fixed download retry (max_retry was str instead of int)