3.0.9: Huge refactoring, new features and bug fixes

Warning this is a breaking release new python packages must be installed (see the Install section in ReadMe)

• Tested against Lychee 3.0.9
• automated testing
• travis ci
• python 3 support
• don't lower case album name
• photos ordered by name in an album
• make use of the DateTimeOriginal exif tag
• dependency change: switch to a pure python mysql driver pymysql
• dependency change: use click to parse arguments
• new dependency: pexif Thanks to @hMatoba for his work !

Fix #48 #46 #40 #37 #22 #20 #12 #47

Lychee 3.0.1 support

• change versioning to match lychee's

Lychee 2.7.1 support

• fixes #14 #15 #16 #18
• tested with lychee 2.7.1

Lychee 2.6 support

• Fix file permission problems
• Fill in the new checksum fields in lychee db model
• Add an update mode to fix permissions and checksum file if a former version of lycheesync has been used on a 2.6 lychee

Lychee 2.5 support

Validated support for lychee 2.5

Exif orientation support and album covers

• Reenable orientation fix for files with exif orientation equals right,top or left,bottom
• Adding 'star' or 'cover' in a filename automatically star it, thus making it candidate for the album cover
• Photo titles now equals original filenames

Fixing sorting problems

see changelog on front page