Correct check for promises with falsy result
Move base bemhtml-templates from `i-bem__html` element to block `i-bem` itself.
Move base bemtree-templates from `i-bem__tree` element to block `i-bem` itself
Inline isVowPromise + replace `{ block: i-bem, elems: html }` deps
Fix path to i-bem__html.bemhtml
BEMHTML: Add debug files paths to build result
Update README.md
Fix exporting for Node.js with ymodules.
Merge branch 'issues/47' into dev
Merge pull request #27 from bem/issues/27

Move base bemhtml-templates from `i-bem__html` element to block `i-bem` itself
Merge pull request #28 from bem/issues/28

Move base bemtree-templates from `i-bem__tree` element to block `i-bem` itself
Merge pull request #55 from bem/issues/55

BEMHTML: Add debug files paths to build result
Merge remote-tracking branch 'origin/dev' into v1
Merge branch 'v1' of github.com:bem/bem-core into v1