Add testnet support.
Merge pull request #28 from christianlundkvist/testnet_support

Expand testnet support using blockr APIs.
Change flag from bool to string.
Merge pull request #29 from christianlundkvist/testnet_support

Change testnet network flag from bool to string.
Fixed changebase for cases (b,b,minlen)
Merge branch 'master' of github.com:vbuterin/pybitcointools
Allow script as tx output.
Add test cases for strings.
A few more SIGHASH fixes
corrects the constant for SIGHASH_ANYONECANPAY and adds support for
hashcode in the sign function for standard payments
Added coinvault support
Reverse-engineered coinvault priv files
bci.py PEP8 compliant
Added helloblock pushtx
Add stealth address support.
Merge pull request #34 from christianlundkvist/basic_stealth_pull_req

Stealth address support
Merge pull request #31 from christianlundkvist/script_outputs

Add ability to use script outputs in mktx()
Fixed send
Fixed send
4x speedup with jordan form
Merge branch 'master' of github.com:vbuterin/pybitcointools