README: add VAGRANT_DEFAULT_PROVIDER

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
README: sparse image creation

libguestfs-tools package is nessesary to make image
sparse.

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
kvm: add vnc console

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
Merge pull request #27 from miurahr/support-vnc-console

kvm: add vnc console
Merge pull request #26 from miurahr/default-provider

README: add VAGRANT_DEFAULT_PROVIDER
Fix to set_name working
Sparse file explaination for several distributions
Merge pull request #25 from miurahr/sparse-disk-image

README: sparse image creation
README: ubuntu PPA for 12.04
Merge pull request #34 from miurahr/readme-ubuntu-support

merged README: ubuntu PPA for 12.04
fix typo in vm_definition
Merge pull request #35 from miurahr/fix_vmdefinition_typo

fix typo in vm_definition
Merge pull request #29 from miurahr/fix_set_name

Fix to set_name working
Introduce gui option to enable/disable VNC
Fix reference error to Error

-driver.rb: include Error
-define KvmNoConnection vagrant error
-Add error message for KvmNoConnection
Gemspec: add requirements for users info
Gemspec: add license and authors
Merge pull request #42 from miurahr/improve_gemspec

Improve gemspec
Merge pull request #43 from miurahr/improve_error_msg

Fix reference error to Error
Merge pull request #41 from miurahr/switch-vnc

Introduce gui option to enable/disable VNC