update for fork

added checkpoint for fork issue
Dogecoin 1.5.2
Dogecoin 1.5.2 (Mac)
Build script update for 1.5.2
Increase -dbcache to 100MB default to help with initial sync
Merge pull request #255 from dogecoin/1.5.2-dbcache

Increase -dbcache to 100MB default to help with initial sync
much 狗狗币. to the moon.
Merge pull request #257 from rromanchuk/localizaton/wow-such-chinese

much 狗狗币. to the moon. (remove litecoin references from client)
fix typos and bad translations

I feel the translation fileds should be shared betweenm the various *coin forks :(
Merge pull request #258 from riffraff/patch-1

fix typos and bad translations in italian locale
Update build-osx.md

Formatting tweak
Update build-osx.md

Link to boost, some clarification in the steps.
Increase Default Block Max Size
Merge pull request #267 from rog1121/Fix-Block-Size

Increase Default Block Max Size
Aim for current block, not depth + 1