Add introduction docstring
Move pymystem from hatbot repository
Some problems in build-assets
And some more in build-assets
Fix lang_utils' imports
Fix storages' getter and context management
Revert "Some problems in build-assets"

The problem was actually with context manager.
This reverts commit 996c3fae601b6a5348ade0004b663515cb73f20d.
Add possibility to pass compiled regexp to modifiers
Add common modifiers' docstrings
Merge pull request #4 from hatbot-team/modifiers

Add some common modifiers
added new modifiers for synonyms and antonyms +parsers
Added one more modifier for antonyms
Some bugfix in modifiers

Conflicts:
	preparation/modifiers.py
Some fix in antonyms and resource registration
Removed old parsed resources and added assets for synonyms and antonyms

Conflicts:
	hb_res/assets/Synonyms.asset
Deleted redundant modifier and fixed bug in another one

Conflicts:
	preparation/modifiers.py
Now normalizing modifier not just delete but also normalize
Assets rebuilded
Merge pull request #7 from hatbot-team/synonyms-mergeable

Synonyms mergeable
Merge branch 'master' into definitions