[WIP] #48094: Do not download Sphinx/ReST Tools/PyYAML sources if available locally

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sphinx/trunk@75308 735d13b6-9817-0410-8766-e36946ffe9aa
[TASK] #48094: Allow sphinx and ReST tools to be manually updated

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sphinx/trunk@75309 735d13b6-9817-0410-8766-e36946ffe9aa
[TASK] Add link to the log of operations

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sphinx/trunk@75310 735d13b6-9817-0410-8766-e36946ffe9aa
[TASK] Click event for the output link may be tricky to trigger

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sphinx/trunk@75311 735d13b6-9817-0410-8766-e36946ffe9aa
[TASK] Add button to remove a version of Sphinx

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sphinx/trunk@75312 735d13b6-9817-0410-8766-e36946ffe9aa
[TASK] Raise version to 0.3.0 (beta)

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sphinx/trunk@75315 735d13b6-9817-0410-8766-e36946ffe9aa
[TASK] Update md5 checksums

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sphinx/trunk@75316 735d13b6-9817-0410-8766-e36946ffe9aa
[TASK][DOC] Remove subchapter about removing a version of Sphinx (feature integrated within GUI as r75312)

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sphinx/trunk@75319 735d13b6-9817-0410-8766-e36946ffe9aa
[TASK][DOC] Update screenshots of the installer

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sphinx/trunk@75320 735d13b6-9817-0410-8766-e36946ffe9aa