URLs with brackets fails in markdown

[rlex]

• BookStack Version: 0.14.1
• PHP Version: 7.0.9
• MySQL Version: 5.7

Expected Behavior

[Syntax](http://en.wikipedia.org/wiki/Syntax_(programming_languages))

Should produce link "Syntax" with href

http://en.wikipedia.org/wiki/Syntax_(programming_languages)

Actual Behavior

Instead, it produces link "Syntax)" with url

http://en.wikipedia.org/wiki/Syntax_(programming_languages

This can be avoided if using %29 instead of bracket, and URL works this way, but still looks like a bug.