add Gemfile.lock to gitignore
add test with big text
update speed
Merge branch 'release/1.pre.0.6'

* release/1.pre.0.6:
  update speed
  add test with big text
  add Gemfile.lock to gitignore
Merge tag '1.pre.0.6' into develop

Update speed

* tag '1.pre.0.6':