POST /groups
{"action":"addgroup","group":"SOME_GROUP","description":"sample group to test commit","owners":"mishex"}
{"action":"addgroup","group":"MISHEX_GROUP_X","description":"sample group to test commit","master":"MSK_GENCFG","is_empty":true}
{"action":"addgroup","group":"MISHEX_GROUP_X","description":"sample group to test commit","master":"MSK_GENCFG","is_empty":false}
{"action":"remove","group":"SOME_OTHER_GROUP"}
{"action":"remove","group":"SOME_OTHER_GROUP"}

POST http://gencfg.qe-dev.yandex-team.ru/groups/MSK_CARD_EDIT_TEST/card
{"card":[{"path":["reqs","instances","memory"],"value":"12 Gb"}],"action":"update"}
+ ...

POST http://gencfg.qe-dev.yandex-team.ru/groups/MSK_BUILD_INTLOOKUP_TEST
{"group":"MSK_BUILD_INTLOOKUP_TEST","action":"build","verbose":true,"apply":true,"reallocate_hosts":true,"rewrite_intlookup":true}
+ apply: false
+ ...

POST http://.../tiers
{"action":"add","tier":"MishexTestTier0","primus": "mishex_test", "shards_count": 10}
{"action":"rename","tier":"MishexTestTier0", "new_tier":"MishexTestTier1"}
{"action":"remove","tier":"MishexTestTier1"}

