Initial vim configuration

Signed-off-by: Wei Zhang <weiz@logstream.net>
Squashed 'bundle/vim-sensible/' content from commit 64aa12b

git-subtree-dir: bundle/vim-sensible
git-subtree-split: 64aa12b07b0be90a8e98bc7be1b5faac4ac873a4
Merge commit 'dd1b56171833e6c20480ae0161f6472d905f592d' as 'bundle/vim-sensible'
Squashed 'bundle/command-t/' content from commit 2b69d1b

git-subtree-dir: bundle/command-t
git-subtree-split: 2b69d1b2635814a786e2c207fea2e5490c455d41
Merge commit 'fb7e533bf9980daf08e23292a3d1973941bd665c' as 'bundle/command-t'
Squashed 'bundle/supertab/' content from commit 40712ea

git-subtree-dir: bundle/supertab
git-subtree-split: 40712ea8f4b5c5a4e5d3b1518e742ea19669fa23
Merge commit '9ada04dbb365dd27a9489fd69351fc9358a05c3f' as 'bundle/supertab'
Squashed 'bundle/vim-easymotion/' content from commit b2951b0

git-subtree-dir: bundle/vim-easymotion
git-subtree-split: b2951b070b58a9e96d4fbe150a8adbfff3bc0fbf
Merge commit 'd8515d720c541ff80f1e89a11816bf96c43e81a6' as 'bundle/vim-easymotion'
Squashed 'bundle/numbers/' content from commit c7e0448

git-subtree-dir: bundle/numbers
git-subtree-split: c7e04485568687ff1c6f4ff842ee80ec9c68d58a
Merge commit 'f396a70284a9b6552cd9e89f07a9d8bfe2d4c7c3' as 'bundle/numbers'
Squashed 'bundle/vim-scala/' content from commit 655c8a5

git-subtree-dir: bundle/vim-scala
git-subtree-split: 655c8a58b07526cd93ead22bacad749e7f26fd7b
Merge commit '735f7906754ed711db1ab661c48ea494db9e999d' as 'bundle/vim-scala'
Squashed 'bundle/rainbow_parentheses/' content from commit eb8baa5

git-subtree-dir: bundle/rainbow_parentheses
git-subtree-split: eb8baa5428bde10ecc1cb14eed1d6e16f5f24695
Merge commit '2fea813309500093d7a7315df7010f2645ae64c9' as 'bundle/rainbow_parentheses'
Squashed 'bundle/vim-indent-guides/' content from commit eec1b62

git-subtree-dir: bundle/vim-indent-guides
git-subtree-split: eec1b629dc4cfa3986d20f21d4b4489732cd3f5a
Merge commit '9bde85cb14d7706803b4437aa5c78d95debb05ab' as 'bundle/vim-indent-guides'
Squashed 'bundle/zoomwin/' content from commit cf21ce1

git-subtree-dir: bundle/zoomwin
git-subtree-split: cf21ce1f4bfec10fe7e446c08e9e647a2a234e03
Merge commit '8a3fc4d08558a3050c8074bd150f96f43b39226a' as 'bundle/zoomwin'
Squashed 'bundle/bufexplorer/' content from commit d1dc1be

git-subtree-dir: bundle/bufexplorer
git-subtree-split: d1dc1be409da9233b6196c1358ce585b6d89723c