doc: fix typos.
doc: fix capitalization policy.
fix spell
proto: bugfix: use blk_set_stacking_limits() for kernel 3.3 or later.
proto: support log_flush_interval parameters.
bugfix: call put_disk() to stop calling make_request().
proto-req: bugfix: use blk_set_stacking_limits() for kernel 3.3 or later.
use WALB_VERSION and WALB_LOG_VERSION.
add doc/.gitignore.
tool: make depend.
tool: use control file for get_version command.
version 1.0.0