rewritten logic  for administration tests by analogy with external links
rewritten logic for administration tests

rewritten logic for administration tests by analogy with external links
aesthetic changes
specified values and added fields
Merge branch 'master' of https://github.com/jtalks-org/functional-tests
Merge branch 'master' of https://github.com/jtalks-org/functional-tests
Merge branch 'master' of https://github.com/jtalks-org/functional-tests
added several topic tests
Changed Topic tests

Made refactoring in Topic tests and added tests for Poll options number
Merge remote-tracking branch 'origin/additional-topic-tests' into additional-topic-tests

Conflicts:
	jcommune-webdriver/src/main/java/org/jtalks/tests/jcommune/webdriver/entity/topic/Topic.java
	jcommune-webdriver/src/main/java/org/jtalks/tests/jcommune/webdriver/page/SignInPage.java
	jcommune-webdriver/src/main/java/org/jtalks/tests/jcommune/webdriver/page/TopicPage.java