fix lookup of undefined variables in interpreter
Merge pull request #245 from timfel/master

Fix old Interpreter lookup of undefined variables
placeholders & layout:
fixed the bug, where layoutet morphs grew more than neccessary when adding a submorph using the hand.
ide: fix opening dire viewer
ide: fix opening dir viewer II
morphic/html: exporting html wrappermmorphs to html docs
rendering: for for vert/horiz scrollbar tester
l2l: logging client (de)registration
TAB-PANE: changed adjustClipping to hide overflow instead of scrolling, to fix a bug with the search.
Checked url before opening browser with user config
Beautification
issue #80:
changed the style editor to display the same content for the morphs name as the rename halo: morph.getName() || morph.toString()
also logging remote address
text: compute char bounds
codeeditor: temp key combos + shift copy fix
l2l tools: openWorkspaceFor session opens a remote workspace
session tracker login: log 'currentWorld' or referer header
lively2lively: fixing debug message
codeeditor: fixing set tab size
core: cleanup of lively.lookup + tests