get rid of postinstall.js
Merge pull request #51 from bem/useBash

get rid of postinstall.js
Do not add an empty menu item
Merge pull request #52 from bem/BEMINFO-607

Do not add an empty menu item
Separator disappeared
Merge pull request #53 from bem/BEMINFO-608

Separator disappeared
Hide strange unused log message from post template
Merge pull request #55 from bem/BEMINFO-582

Hide strange unused log message from post template
Search blocks, libraries and posts by tags
Merge pull request #54 from bem/BEMINFO-509

Search blocks, libraries and posts by tags
Remove unused data modules
Remove unused file bin/data.js
Add database folder to the list of git ignored files
Simplify application configuration file and remove unused properties
Change aliases and modify list of dependencies in package.json file
Remove unused modules
add levelup and leveldown dependencies to package.json file
Temporary disable cron update for data
Add blocks for work with database
Rewrite and refactor server blocks for work with database