Suggestion: rename Session.vim to .session.vim

[jamatsui]

Hi Tim,

Was wondering if it would make more sense to change the generic filename to .session.vim instead of Session.vim. I realize there's a way to customize the filename for myself, but was thinking this could be applied more generically with the plugin and is more in-line with dot file convention. Thanks for this plugin.

[tpope]

The filename is ugly but it's the default for vim -S so it's the only option in my book.

[jamatsui]

Hah, makes sense! Thanks