pymol plug-in for EPPIC is added
pymol command line plug in also added
Error messages are improved
Help files modified
Help files modified and formated
load_eppic changed into fetch_eppic
Handle HTTPErrors
Reduce fetch_eppic redundancy

also, some whitespace changes
Tk module excluded from mac version
Refactored to remove duplication & add features

- Removed FetchEPPIC class. It gets called procedurally, so OOP isn't necessary
- Added asychronous loading, like fetch
- Added name and state parameters for command-line version, like fetch
- Isolate Tk parts, to make OS compatability easier to maintain
Fix some Tk problems
Plugin split into command like and gui mode and mac version is woking fine
Plugin split into command like and gui mode and mac version is woking fine
Plugin split into command line mode  and gui mode and mac version is woking fine
Merge remote-tracking branch 'upstream/master'