Revert "Adapt to DomTree changes in r199104"

This reverts commit 0048d40e45ef70ad0abc0a3588ad4ecf0630c787.
Remove MayAliasSet class

The MayAliasSet class is currently not used and just confuses people. We can
reintroduce it in case need a more precise tracking of alias sets.

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@201191 91177308-0d34-0410-b5e6-96231b3b80d8
Add link to polyhedral.info

This website provides general information about polyhedral compilation.

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@201192 91177308-0d34-0410-b5e6-96231b3b80d8
Fix formatting

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@201204 91177308-0d34-0410-b5e6-96231b3b80d8
Merge http://llvm.org/git/polly into develop_35