Fix import command parameters

Apparently, the Commander gem treats options as boolean values
when one does not indicate that a certain options is followed
by a string. This led to the jekyll-import gem only receiving
booleans instead of dbname/user/pwd...
Merge pull request #910 from x3ro/fix-import-command-parameters

Fix import command parameters
Update history to reflect merge of #910.
Add code climate badge to README
Preloads directory_watcher glob
Merge pull request #913 from dracula2000/master

Add code climate badge to README
Fixes for directory_watcher 1.5.x integration. Closes #916.
Update history to reflect inclusion of fix from #916.
Merge pull request #916 from AlexanderEkdahl/directory_pre_load

Preloads directory_watcher glob
Using directory_watcher 1.4.1.
1.5.1 has issues on ubuntu.
#916.