Improve default value of g:Easymotion_keys

- Use qwerty keys layout by default and this is intuitive and easy to
  type
- Remove uppear case letter because to press Shit is pain and EasyMotion
  shows two label if there are a lot of matches, so it's little problem
  to reduce g:Easymotion_keys
- EasyMotion use last keys as a first key of two label, so I moved `f`,
  `j`, and `;` to last

plugin/EasyMotion.vim

@@ -23,7 +23,8 @@ set cpo&vim
 " == Default configuration {{{
 " -- Option ------------------------------ {{{
 let g:EasyMotion_keys               = get(g:,
-    \ 'EasyMotion_keys', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ')
+    \ 'EasyMotion_keys', 'asdghklqwertyuiopzxcvbnmfj;')
+    " \ 'EasyMotion_keys', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ')
 let g:EasyMotion_do_mapping         = get(g: , 'EasyMotion_do_mapping'         , 1)
 let g:EasyMotion_do_shade           = get(g: , 'EasyMotion_do_shade'           , 1)
 let g:EasyMotion_grouping           = get(g: , 'EasyMotion_grouping'           , 1)

t/easymotion_spec.vim

@@ -1,7 +1,7 @@
 "=============================================================================
 " FILE: t/easymotion_spec.vim
 " AUTHOR: haya14busa
-" Last Change: 02 Feb 2014.
+" Last Change: 06 Feb 2014.
 " Test: https://github.com/kana/vim-vspec
 " Refer: https://github.com/rhysd/clever-f.vim
 " Description: EasyMotion test with vim-vspec
@@ -440,7 +440,8 @@ describe 'Default settings'
 
     it 'provide variables to customize EasyMotion'
         " Option {{{
-        Expect g:EasyMotion_keys ==# 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
+        Expect g:EasyMotion_keys ==# 'asdghklqwertyuiopzxcvbnmfj;'
+        " Expect g:EasyMotion_keys ==# 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
         Expect g:EasyMotion_do_mapping         ==# 1
         Expect g:EasyMotion_do_shade           ==# 1
         Expect g:EasyMotion_grouping           ==# 1