Merge branch 'production' into development

# Conflicts:
#	classes/Visualizer/Plugin.php

Author: selu91

CHANGELOG.md

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+
+### 1.5.2 - 13/02/2016
+
+ Changes: 
+
+
+ * Fix for create button missing.
+
+
+### 1.5.2 - 11/02/2016
+
+ Changes: 
+
+
+ * fixed from web button
+ * Merge sidebars from step 2 and step 3 into 1
+
+1. Merge sidebars from step 2 and step 3 into 1.
+2. Stop form from being submitted when the Enter button is pressed.
+ * Modified style for laptop screens
+
+The menus from step 2) are now more compact.
+ * Merge pull request #55 from DragosBubu/development
+
+Modified style for laptop screens
+ * Update readme.txt
+ * Added links and pro version mention
+ * Added links and pro version mention
+ * centered rating + added back upload text
+
+- Added initial upload details text
+- Removed text shadow from upload button
+- Removed stars from the bottom
+ * Merge pull request #62 from abaicus/development
+
+!!!Restyled sidebar
+ * Merge pull request #64 from abaicus/development
+
+!!!Fixed issues with jQuery.
+ * Added advanced section
+
+
+### 1.5 - 26/10/2015
+
+ Changes: 
+
+
+ * Merge remote-tracking branch 'origin/development' into development
+
+
+### 1.5 - 26/10/2015
+
+ Changes: 
+
+
+* Added support for live editor
+* Added support for importing data from other charts
+* Added filter for chart settings
+* Fixed bug when zero was not working on the charts