initial commit for ruby 1.9.3
fix the problems introduced by commit 62cfe2a76efde90d94d19e02b920140ca36a576e
fix Logger
gems for ruby 1.9.3p543
.ruby-version cause rvm to switch version upon changing directory
set up ruby 1.9.3 environment
Merge branch 'ruby1.9.3'

* ruby1.9.3:
  set up ruby 1.9.3 environment
  .ruby-version cause rvm to switch version upon changing directory
  gems for ruby 1.9.3p543
  fix Logger
  fix the problems introduced by commit 62cfe2a76efde90d94d19e02b920140ca36a576e
  initial commit for ruby 1.9.3