Fixed two bugs in transaction validation.

Signed-off-by: Andrew Miller <amiller@dappervision.com>
Added minimum features for transaction signing

Signed-off-by: Andrew Miller <amiller@dappervision.com>
Merge pull request #28 from amiller/txfixes

Bug fixed in transaction validation, transaction signing added
Formatting changes and varint fix for CB_SIGHASH_ANYONECANPAY
Removed signing code for now. Will consider again later. Not to be used internally by cbitcoin anyway.
Added Andrew Miller to contributors list
Fix newline
Added email address
Updated configure to not add architecture flags.
Removed weak linking pagma for CBEcdsaSign
Changed build system to supposedly work on Red Hat systems
Forgot to run autoconf
Merge branch 'master' of github.com:MatthewLM/cbitcoin