[BUGFIX] fix sorting by meta data, if pages has the same meta value.

this commit fixes #46
Merge pull request #47 from PhileCMS/bugfix/MetaSorting

[BUGFIX] fix sorting by meta data, if pages has the same meta value.
add constant for version number
add instruction for encryption key value
[BUGFIX] fix handling of URI

fix #50 [BUG] Using a querystring on the uri
Merge pull request #54 from PhileCMS/bugfix/Querystring

[BUGFIX] fix handling of URI
limit meta colon split to 2
update core
update dependencies
update vendor dir