Fix link to build system docs
Merge pull request #345 from larskluge/patch-1

Fix link to build system docs
Merge pull request #336 from CounterpartyXCP/develop

Merge Develop in Master
typo
log lock acquisition
[#382] empty util.BLOCK_LEDGER before parsing block instead after
update version.json url
Merge pull request #400 from JahPowerBit/master

update version.json url (master)
fixes #375
Merge branch 'master' into develop