Fix compilation error on Ubuntu 14.04 (gcc > 4.7).
Fix typo.
Merge pull request #50 from domob1812/fix-14.04

Fix compilation error on Ubuntu 14.04 (gcc > 4.7).
Merge pull request #53 from domob1812/fix-typo

Fix typo.
Add difficulty field to getblock / getblockbycount.

Add the difficulty as new field in the JSON representation of a block.
See https://github.com/namecoin/namecoin/issues/112.
Merge pull request #51 from domob1812/millisleep

Rename Sleep to MilliSleep and always use boost.
Merge pull request #54 from domob1812/add-difficulty

Add difficulty field to getblock / getblockbycount.