Category names are no longer trimmed

Fixes category names being trimmed at more than twenty five characters,
now the names are just displayed on screen.

Fixes #94
Add a few missing features to the changelog

For some of the branches that have been merged lately, these have gone
in to the master branch without being mentioned in the ChangeLog.md
file.
Add message in the ChangeLog.md file

Add message describing that the category names are no longer trimmed to
24 characters.
Add note about the mantissa
Merge branch 'master' of git://github.com/qiime/emperor into missing-changelog-notes

Conflicts:
	ChangeLog.md
Merge pull request #242 from ElDeveloper/missing-changelog-notes

Add a few missing features to the changelog
Merge branch 'master' of git://github.com/qiime/emperor into issue-94

Conflicts:
	ChangeLog.md
Merge pull request #241 from ElDeveloper/issue-94

Category names are no longer trimmed