gitignore send-tx commands
fix help for sx-addr command, so it includes fact that this will work for public as well as private key
doc: note that the output can be non-deterministic with some inputs.

Close https://github.com/spesmilo/sx/issues/37
Merge pull request #38 from tphyahoo/gitignore_fix

gitignore send-tx commands
Merge pull request #39 from tphyahoo/help-addr

Fix help for sx-addr
Fix typos.
Fix for electrum-style deterministic wallet. Always exports uncompressed secret to wif.
Check to see if a wif is compressed and set the key secret accordingly.
Copyediting

There are a number of tweaks. However, I mainly wanted to replace:

  Each worker must have their own

with:

  Each worker must have its own

so that it no longer reads as though a 9-year-old had written it during remedial lessons for English-as-a-second-language.
`[ob-]broadcast-tx' and `sendtx' don't exist anymore

The documentation and code still made references to these old names.
This commit updates not only these command names, but also any
surrounding text that is relevant.

Maintaining this sort of thing may become increasingly difficult
unless steps are taken to centralize documentation and strings
in a way that can be referenced in multiple places rather than
merely copied.
Merge pull request #44 from b6393ce9-d324-4fe1-996b-acf82dbc3d53/patch-1

Copyediting docs
Merge pull request #45 from b6393ce9-d324-4fe1-996b-acf82dbc3d53/cruft-0000

doc: `[ob-]broadcast-tx' and `sendtx' don't exist anymore
changes to stealth as per peter todd
typo
add creating stealth db to initchain
sx fetch-stealth command.
corrections to stealth-send.
Update install-sx.sh

figure out which libboost is in use and install the relevent deps rather than fail
Update install-sx.sh

Correctly determines if libboost1.49-dev or libboost1.53-dev is installed.
Defaults to 1.49 if neither found
Merge pull request #46 from starkers/patch-1

Update install-sx.sh