Revert "Revert "fix http://community.sharpdevelop.net/forums/t/15743.aspx - Null reference exception in Watch windows""

This reverts commit 0cf4f4f5d92364c2ed8fc41099cccc64165de36a.
Revert "Revert "Revert aca4119 (r5998) to fix forum-14354: Rename fails if filename in Project Explorer is too long for the treeview viewport""

This reverts commit be13fcd66b040af72deb4ea67e163dffc13e9513.
Revert "Revert "implement type-lookup cache to improve performance of Forms Designer - http://community.sharpdevelop.net/forums/t/15914.aspx""

This reverts commit 277e7897c762410f0c965b7674b38750fcfa56c0.
Revert "Revert "Update ICSharpCode.Decompiler to ILSpy 2.1""

This reverts commit e5599507a42ae3bc497be7290bd9b7d75c33d938.
Revert "Revert "update translations""

This reverts commit 8ddc4f1facb3c3399092de6c3fb885d0fbef2706.
Revert "Revert "fix http://community.sharpdevelop.net/forums/p/15982/42766.aspx#42766 - Attach to Process and command “Step over”""

This reverts commit 5d988b2559af8f7e18ed681d14745a677432f8be.