…uld be functional.

…kchain already downloaded.

* Added a new seed.

* Changed the Bitcoin logo&icon to I0coin.
* Fixed some missing libraries in the .pro project file.

In ISO C++, the signedness of 'char' is undefined.  On some platforms (e.g.
ARM), 'char' is an unsigned type, but some of the code relies on 'char' being
signed (as it is on x86).  This is indicated by compiler warnings like this:

 bignum.h: In constructor 'CBigNum::CBigNum(char)':
 bignum.h:81:59: warning: comparison is always true due to limited range of data type [-Wtype-limits]

 util.cpp: In function 'bool IsHex(const string&)':
 util.cpp:427:28: warning: comparison is always false due to limited range of data type [-Wtype-limits]

In particular, IsHex erroneously returned true regardless of the input
characters, as long as the length of the string was a positive multiple of 2.

Note: For testing, it's possible using GCC to force char to be unsigned by
adding the -funsigned-char parameter to xCXXFLAGS.

Conflicts:

	src/bitcoinrpc.cpp

- Easier for debugging (what opcode was 0x... again?)
- Clarifies that the opcodes are set in stone in the protocol, and signals that it is impossible to insert opcodes in between.

…(and never serialized)

The Qt UI has its own associated structures for temporary transaction state / cache.

…tion

* Added a include header that was removed on a merge by mistake.
* Replaced all the Bitcoin references by I0coin on the locale files (en & es_CL).