Merge pull request #250 from cristianoc72/master

Fix runtime-conf.xml example
Merge pull request #252 from cristianoc72/master

Update index.markdown
Update sluggable.markdown

Add a new line before the first xml in order to fix rendering of this page : http://propelorm.org/behaviors/sortable
Update sortable.markdown

Add a new line before the first xml in order to fix rendering of this page : http://propelorm.org/behaviors/sortable
Update nested-set.markdown

Add a new line before the first xml in order to fix rendering of this page : http://propelorm.org/behaviors/nested-set
Update versionable.markdown

Add a new line before the first xml in order to fix rendering of this page : http://propelorm.org/behaviors/versionable
Update i18n.markdown

Typo
Update query-cache.markdown

Add a new line before the first xml in order to fix rendering of this page : http://propelorm.org/behaviors/query-cache
Update 06-behaviors.markdown

fix of the link to the Inheritance Chapter
Merge pull request #259 from ferjul17/patch-7

Update query-cache.markdown
Merge pull request #260 from ferjul17/patch-8

Update 06-behaviors.markdown
Merge pull request #257 from ferjul17/patch-5

Update versionable.markdown
Merge pull request #254 from ferjul17/patch-2

Update sluggable.markdown
Merge pull request #255 from ferjul17/patch-3

Update sortable.markdown
Merge pull request #256 from ferjul17/patch-4

Update nested-set.markdown
Merge pull request #258 from ferjul17/patch-6

Update i18n.markdown
Remvove 'unstable' word in Propel ECG
remove alternative cs behavior doc
typos fixed
Merge pull request #261 from peterkokot/patch-1

Some typos fixed