Changed to Android client details

Android client details by https://github.com/karolsarnacki
Constants renamed to UPPERCASE
Property names renamed to camelCase and removed underscore (PSR-2 section4.2)
Property names renamed to camelCase and removed underscore (PSR-2 section4.2)
Property names renamed to camelCase and removed underscore (PSR-2 section4.2)
MAJOR RENAMING OF METHODS - Legacy Code WILL break.

Method names standardised! camelCase formatted (PSR-2 section4.3) 
All methods in main whatsprot.class.php have been examined and a lot of the renamed to give a more consistent feel to the API. A new format of:
sendMethodName => Used for sending something to whatsapp Servers (messages, status etc)
sendGetMethodName => Used to request something from whatsapp servers (sendGetGroupsList, sendGetStatus etc)
Methods rearrangement

Methods/Constants/Properties have all been rearranged.

Sorted by Public/Protected/Private status, then alphabetically within each section.
Removal of unneeded IDE files. Oops.
Fixed old whatsapp version for new android client details.

Also rearranged some consts to better group client details together
Some last minute const name changes.