Merge pull request #1834 from matham/master

unichr doesn't exist in py3. use PY2 to select correct chr.
Convert xcode_dev to unicode before building sysroot
Merge pull request #1838 from dustinfarris/fix-py3-osx-bytecode

Convert xcode_dev to unicode before building sysroot
Remove duplicate 'listview' link on uix index
Avoids the "Too many open files" error in case of a large number of input files.
Merge pull request #1841 from ykmm/atlas-toomanyfiles-fix

Avoids the "Too many open files" error in case of a large number of inpu...
Merge pull request #1840 from dustinfarris/doc-fixes

Remove duplicate 'listview' link in uix index