Adds many rlsnotes

RELEASE-NOTES.md

@@ -2,10 +2,19 @@
 
 ### Version 2.1.5 - Nov 1, 2015
 
+**Minor Enhancements*8
+- **Modal** - `onHide` callback can now cancel event by returning false #3168 **Thanks @mdehoog**
+
 **Bugs**
+- **Divider/Step/Modal/AD** - Fixes 1px jump at `@mobileBreakpoint` caused by incorrect edge conditions in media query #3180 **THanks @mdehoog**
 - **Sticky** - Fixes bug where sticky would stick at incorrect times when using a different scroll container than `body` and when the container's `scrollTop` is not 0 on init.
 - **Grid** - Fixes attached segment 1px offset inside grid column #3226
-
+- **Popup** - Fixes positioning issue when `movePopup: false` #3213 **Thanks @parisholley**
+- **Form Validation** - Fixes some issues with form integer validation #3053 **Thanks @maturano**
+- **Search** - Fixes `onSearchQuery` not firing when results are cached **Thanks @mnquintana**
+- **Grid** - Fixes some inconsistencies with `widescreen only` class #3161 **Thanks @mdehoog**
+- **Search** - Fixes `url` parameter not working correctly due to typo in source **Thanks @fabienb4**
+- **Dimmer** - Dimmer can now works correctly with `opacity: 0` #3167 **Thanks @mdehoog**
 
 ### Version 2.1.4 - Sep 13, 2015