Adding Puredata Extended 0.43 (stable)

Installs Puredata Extended v0.43. Does not currently uninstall.
The app has 0555 permissions on some of the files and the cask cannot
simply 'rm' the files since we don't have write access to them. Need
some further guidance on how to handle this.
add iStat Server.app cask
Merge pull request #4138 from BM5k/istat-server

add iStat Server.app cask
fixed symlink error in scilab.rb
wireshark: update download URL

The previous URL is no longer valid.
Fix Java 8 missing Home symlink
Merge pull request #4570 from kruton/wireshark-update

wireshark: update download URL
Baidu Cloud: Fix checksum
Merge pull request #4572 from Leask/master

Baidu Cloud: Fix checksum
Merge pull request #4569 from pan-long/fix-scilab-symlink-error

fixed symlink error in scilab.rb
Update Postbox to 3.0.10
Merge pull request #4573 from ngocphamm/patch-13

Update Postbox to 3.0.10
updated textexpander (4.3.1)
Merge pull request #4574 from vitorgalvao/update-textexpander

updated textexpander (4.3.1)
Bump navicat-for-postgresql to v11.0.18
Merge pull request #4575 from fengb/navicat-for-postgresql

Bump navicat-for-postgresql to v11.0.18
ScreenFlow 4.5.1
Merge pull request #4576 from ahbeng/screenflow-4.5.1

ScreenFlow 4.5.1
Merge pull request #4564 from zwaldowski/java-home

Fix Java 8 missing Home symlink
Updated Scribus.rb to 1.4.4 (latest stable)