Intelhex

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Bug fixes and performance improvements.

* ``IntelHex`` is able to read/write start address records
(HEX record type ``03`` and ``05``). (fix bug 109872)
* Backport (from 0.9 branch) of performance improvements
for reading hex files

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BugFix Release.

Performance improvements for writing big hex files
when starting address is far from 0. Patch from Heiko Henkelmann.

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License added.

The code is actually licensed under BSD, but there was
no LICENSE file in sources archive. Added license file
and explicit declaration in the source code.

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BugFix Release.

Fix writing hex files with extended linear records
(when address overlaps 64K boundary). Patch from Henrik Maier.

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Major improvements release.

* Introduced new class ``IntelHex16bit`` for manipulate data as 16-bit values
* You can manipulate data using dictionary-like interface
(i.e. syntax like: ``ih[addr] = value``)
* Added new method ``writefile(file)`` for writing data to hex file
* Using unittest for testing functionality

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Convertor engine ``hex2bin`` extracted to stand-alone function
for using by external clients of intelhex.